Science and Methods - RCPI

 

The Research Conservation Priority Index (Buechly et. al., 2019)  combines the research attention recieved by a species with its threat status as determined by the International Union for the Conservation of Nature (IUCN) and BirdLife International. The RCPI can therefor be used to rank species by their research and conservation priority.

Download an Excel file of the RCPI here:

 

RCPI Table
Title Binomial Name Family RCPI Score
Annobon Scops-owl Otus feae Strigidae 1.00
Cuban Kite Chondrohierax wilsonii Accipitridae 0.95
Flores Hawk-eagle Nisaetus floris Accipitridae 0.95
Siau Scops-owl Otus siaoensis Strigidae 0.95
Pernambuco Pygmy-owl Glaucidium mooreorum Strigidae 0.92
North Philippine Hawk-eagle Nisaetus philippensis Accipitridae 0.90
South Philippine Hawk-eagle Nisaetus pinskeri Accipitridae 0.90
Camiguin Boobook Ninox leventisi Strigidae 0.90
Cebu Boobook Ninox rumseyi Strigidae 0.90
Romblon Boobook Ninox spilonotus Strigidae 0.90
Least Boobook Ninox sumbaensis Strigidae 0.90
Moheli Scops-owl Otus moheliensis Strigidae 0.90
Serendib Scops-owl Otus thilohoffmanni Strigidae 0.90
Pallas's Fish-eagle Haliaeetus leucoryphus Accipitridae 0.85
Grand Comoro Scops-owl Otus pauliani Strigidae 0.85
Congo Bay-owl Phodilus prigoginei Tytonidae 0.85
Ridgway's Hawk Buteo ridgwayi Accipitridae 0.84
Gundlach's Hawk Accipiter gundlachi Accipitridae 0.82
Flores Scops-owl Otus alfredi Strigidae 0.82
Long-whiskered Owlet Xenoglaux loweryi Strigidae 0.82
Red-headed Vulture Sarcogyps calvus Accipitridae 0.81
Slender-billed Vulture Gyps tenuirostris Accipitridae 0.81
Rüppell's Vulture Gyps rueppelli Accipitridae 0.80
Philippine Eagle Pithecophaga jefferyi Accipitridae 0.80
Nicobar Sparrowhawk Accipiter butleri Accipitridae 0.80
New Britain Goshawk Accipiter princeps Accipitridae 0.80
Socotra Buzzard Buteo socotraensis Accipitridae 0.80
Plumbeous Hawk Cryptoleucopteryx plumbea Accipitridae 0.80
Chestnut-shouldered Goshawk Erythrotriorchis buergersi Accipitridae 0.80
Black Honey-buzzard Henicopernis infuscatus Accipitridae 0.80
Andaman Serpent-eagle Spilornis elgini Accipitridae 0.80
Kinabalu Serpent-eagle Spilornis kinabaluensis Accipitridae 0.80
Plumbeous Forest-falcon Micrastur plumbeus Falconidae 0.80
Philippine Eagle-owl Bubo philippensis Strigidae 0.80
Albertine Owlet Glaucidium albertinum Strigidae 0.80
Cloudforest Pygmy-owl Glaucidium nubicola Strigidae 0.80
Maned Owl Jubula lettii Strigidae 0.80
Malaita Boobook Ninox malaitae Strigidae 0.80
Mindoro Boobook Ninox mindorensis Strigidae 0.80
Makira Boobook Ninox roseoaxillaris Strigidae 0.80
Nicobar Scops-owl Otus alius Strigidae 0.80
Javan Scops-owl Otus angelinae Strigidae 0.80
Biak Scops-owl Otus beccarii Strigidae 0.80
Banggai Scops-owl Otus mendeni Strigidae 0.80
Visayan Scops-owl Otus nigrorum Strigidae 0.80
White-fronted Scops-owl Otus sagittatus Strigidae 0.80
Rufous Fishing-owl Scotopelia ussheri Strigidae 0.80
Papuan Hawk-owl Uroglaux dimorpha Strigidae 0.80
Minahasa Masked-owl Tyto inexspectata Tytonidae 0.80
Anjouan Scops-owl Otus capnodes Strigidae 0.79
White-headed Vulture Trigonoceps occipitalis Accipitridae 0.79
Madagascar Marsh-harrier Circus macrosceles Accipitridae 0.78
Reunion Marsh-harrier Circus maillardi Accipitridae 0.78
White-collared Kite Leptodon forbesi Accipitridae 0.78
Grey-backed Hawk Pseudastur occidentalis Accipitridae 0.78
Madagascar Fish-eagle Haliaeetus vociferoides Accipitridae 0.77
Black-and-chestnut Eagle Spizaetus isidori Accipitridae 0.75
Hooded Vulture Necrosyrtes monachus Accipitridae 0.75
New Britain Sparrowhawk Accipiter brachyurus Accipitridae 0.75
Imitator Goshawk Accipiter imitator Accipitridae 0.75
Beaudouin's Snake-eagle Circaetus beaudouini Accipitridae 0.75
Papuan Eagle Harpyopsis novaeguineae Accipitridae 0.75
Fearful Owl Nesasio solomonensis Strigidae 0.75
New Britain Boobook Ninox odiosa Strigidae 0.75
Sulu Boobook Ninox reyi Strigidae 0.75
Sao Tome Scops-owl Otus hartlaubi Strigidae 0.75
Pemba Scops-owl Otus pembaensis Strigidae 0.75
Seram Masked-owl Tyto almae Tytonidae 0.75
Golden Masked-owl Tyto aurantia Tytonidae 0.75
Indian Vulture Gyps indicus Accipitridae 0.74
Madagascar Serpent-eagle Eutriorchis astur Accipitridae 0.73
Seychelles Scops-owl Otus insularis Strigidae 0.73
Black Harrier Circus maurus Accipitridae 0.72
Slaty-backed Goshawk Accipiter luteoschistaceus Accipitridae 0.72
Giant Scops-owl Otus gurneyi Strigidae 0.72
Taliabu Masked-owl Tyto nigrobrunnea Tytonidae 0.72
Rufous-necked Sparrowhawk Accipiter erythrauchen Accipitridae 0.70
Moluccan Goshawk Accipiter henicogrammus Accipitridae 0.70
Dwarf Sparrowhawk Accipiter nanus Accipitridae 0.70
Forest Buzzard Buteo trizonatus Accipitridae 0.70
Lesser Fish-eagle Icthyophaga humilis Accipitridae 0.70
Grey-headed Fish-eagle Icthyophaga ichthyaetus Accipitridae 0.70
Doria's Goshawk Megatriorchis doriae Accipitridae 0.70
Great Nicobar Serpent-eagle Spilornis klossi Accipitridae 0.70
Shelley's Eagle-owl Bubo shelleyi Strigidae 0.70
Colombian Screech-owl Megascops colombianus Strigidae 0.70
Togian Boobook Ninox burhani Strigidae 0.70
Guadalcanal Boobook Ninox granti Strigidae 0.70
Mindanao Boobook Ninox spilocephala Strigidae 0.70
Enggano Scops-owl Otus enganensis Strigidae 0.70
Palawan Scops-owl Otus fuliginosus Strigidae 0.70
Mantanani Scops-owl Otus mantananensis Strigidae 0.70
Sula Scops-owl Otus sulaensis Strigidae 0.70
Simeulue Scops-owl Otus umbra Strigidae 0.70
Indian Spotted Eagle Clanga hastata Accipitridae 0.69
Sanford's Sea-eagle Haliaeetus sanfordi Accipitridae 0.69
Wallace's Hawk-eagle Nisaetus nanus Accipitridae 0.69
Bearded Screech-owl Megascops barbarus Strigidae 0.69
Cinnabar Boobook Ninox ios Strigidae 0.69
White-rumped Vulture Gyps bengalensis Accipitridae 0.69
Blakiston's Eagle-owl Bubo blakistoni Strigidae 0.69
Javan Hawk-eagle Nisaetus bartelsi Accipitridae 0.68
Crowned Solitary Eagle Buteogallus coronatus Accipitridae 0.67
White-necked Hawk Buteogallus lacernulatus Accipitridae 0.66
Taita Falcon Falco fasciinucha Falconidae 0.66
Christmas Boobook Ninox natalis Strigidae 0.66
White-backed Vulture Gyps africanus Accipitridae 0.66
Omani Owl Strix butleri Strigidae 0.65
White-bellied Goshawk Accipiter haplochrous Accipitridae 0.65
Madagascar Sparrowhawk Accipiter madagascariensis Accipitridae 0.65
Rufous Crab-hawk Buteogallus aequinoctialis Accipitridae 0.65
Cuban Black Hawk Buteogallus gundlachii Accipitridae 0.65
White-fronted Falconet Microhierax latifrons Falconidae 0.65
White-rumped Pygmy-falcon Polihierax insignis Falconidae 0.65
Chestnut-backed Owlet Glaucidium castanotum Strigidae 0.65
Tamaulipas Pygmy-owl Glaucidium sanchezi Strigidae 0.65
Cloudforest Screech-owl Megascops marshalli Strigidae 0.65
Ochre-bellied Boobook Ninox ochracea Strigidae 0.65
Chocolate Boobook Ninox randi Strigidae 0.65
Rinjani Scops-owl Otus jolandae Strigidae 0.65
Mentawai Scops-owl Otus mentawi Strigidae 0.65
Mindoro Scops-owl Otus mindorensis Strigidae 0.65
Mindanao Highland Scops-owl Otus mirus Strigidae 0.65
Mauritius Kestrel Falco punctatus Falconidae 0.64
Madagascar Red Owl Tyto soumagnei Tytonidae 0.64
California Condor Gymnogyps californianus Cathartidae 0.64
Sokoke Scops-owl Otus ireneae Strigidae 0.64
Lappet-faced Vulture Torgos tracheliotos Accipitridae 0.64
Rufous-tailed Hawk Buteo ventralis Accipitridae 0.63
Seychelles Kestrel Falco araeus Falconidae 0.63
Steppe Eagle Aquila nipalensis Accipitridae 0.62
Semi-collared Hawk Accipiter collaris Accipitridae 0.62
Gurney's Eagle Aquila gurneyi Accipitridae 0.62
Black Solitary Eagle Buteogallus solitarius Accipitridae 0.62
Sumba Boobook Ninox rudolfi Strigidae 0.62
Luzon Highland Scops-owl Otus longicornis Strigidae 0.62
Steller's Sea-eagle Haliaeetus pelagicus Accipitridae 0.61
Sooty Falcon Falco concolor Falconidae 0.61
Sulawesi Goshawk Accipiter griseiceps Accipitridae 0.60
Black-mantled Goshawk Accipiter melanochlamys Accipitridae 0.60
Ovambo Sparrowhawk Accipiter ovampensis Accipitridae 0.60
Grey-headed Goshawk Accipiter poliocephalus Accipitridae 0.60
Lesser Sundas Goshawk Accipiter sylvestris Accipitridae 0.60
Spot-tailed Goshawk Accipiter trinotatus Accipitridae 0.60
African Cuckoo-hawk Aviceda cuculoides Accipitridae 0.60
Himalayan Buzzard Buteo refectus Accipitridae 0.60
Western Banded Snake-eagle Circaetus cinerascens Accipitridae 0.60
Papuan Harrier Circus spilothorax Accipitridae 0.60
Slender-billed Kite Helicolestes hamatus Accipitridae 0.60
Long-tailed Honey-buzzard Henicopernis longicauda Accipitridae 0.60
Semiplumbeous Hawk Leucopternis semiplumbeus Accipitridae 0.60
Philippine Honey-buzzard Pernis steerei Accipitridae 0.60
Sulawesi Serpent-eagle Spilornis rufipectus Accipitridae 0.60
African Hobby Falco cuvierii Falconidae 0.60
Red-necked Falcon Falco ruficollis Falconidae 0.60
Buckley's Forest-falcon Micrastur buckleyi Falconidae 0.60
Philippine Falconet Microhierax erythrogenys Falconidae 0.60
Pied Falconet Microhierax melanoleucos Falconidae 0.60
Carunculated Caracara Phalcoboenus carunculatus Falconidae 0.60
Greyish Eagle-owl Bubo cinerascens Strigidae 0.60
Akun Eagle-owl Bubo leucostictus Strigidae 0.60
Spot-bellied Eagle-owl Bubo nipalensis Strigidae 0.60
Yungas Pygmy-owl Glaucidium bolivianum Strigidae 0.60
Chestnut Owlet Glaucidium castaneum Strigidae 0.60
Javan Owlet Glaucidium castanopterum Strigidae 0.60
Baja Pygmy-owl Glaucidium hoskinsii Strigidae 0.60
Colima Pygmy-owl Glaucidium palmarum Strigidae 0.60
Jungle Owlet Glaucidium radiatum Strigidae 0.60
Sjostedt's Owlet Glaucidium sjostedti Strigidae 0.60
Red-chested Owlet Glaucidium tephronotum Strigidae 0.60
Tucuman Pygmy-owl Glaucidium tucumanum Strigidae 0.60
Pacific Screech-owl Megascops cooperi Strigidae 0.60
Yungas Screech-owl Megascops hoyi Strigidae 0.60
Peruvian Screech-owl Megascops roboratus Strigidae 0.60
Long-tufted Screech-owl Megascops sanctaecatarinae Strigidae 0.60
Vermiculated Screech-owl Megascops vermiculatus Strigidae 0.60
Andaman Boobook Ninox affinis Strigidae 0.60
Tanimbar Boobook Ninox forbesi Strigidae 0.60
Buru Boobook Ninox hantu Strigidae 0.60
Halmahera Boobook Ninox hypogramma Strigidae 0.60
West Solomons Boobook Ninox jacquinoti Strigidae 0.60
Tasmanian Boobook Ninox leucopsis Strigidae 0.60
Manus Boobook Ninox meeki Strigidae 0.60
Hume's Boobook Ninox obscura Strigidae 0.60
Jungle Boobook Ninox theomacha Strigidae 0.60
Bismarck Boobook Ninox variegata Strigidae 0.60
Andaman Scops-owl Otus balli Strigidae 0.60
Rajah Scops-owl Otus brookii Strigidae 0.60
Mindanao Lowland Scops-owl Otus everetti Strigidae 0.60
Sulawesi Scops-owl Otus manadensis Strigidae 0.60
Mayotte Scops-owl Otus mayottensis Strigidae 0.60
Wallace's Scops-owl Otus silvicola Strigidae 0.60
Socotra Scops-owl Otus socotranus Strigidae 0.60
Wetar Scops-owl Otus tempestatis Strigidae 0.60
Jamaican Owl Pseudoscops grammicus Strigidae 0.60
Palau Owl Pyrroglaux podargina Strigidae 0.60
Vermiculated Fishing-owl Scotopelia bouvieri Strigidae 0.60
Desert Tawny Owl Strix hadorami Strigidae 0.60
Himalayan Owl Strix nivicolum Strigidae 0.60
Mottled Wood-owl Strix ocellata Strigidae 0.60
Sri Lanka Bay-owl Phodilus assimilis Tytonidae 0.60
Lesser Sooty-owl Tyto multipunctata Tytonidae 0.60
Cape Vulture Gyps coprotheres Accipitridae 0.60
Reddish Scops-owl Otus rufescens Strigidae 0.59
Rusty-barred Owl Strix hylophila Strigidae 0.59
Secretarybird Sagittarius serpentarius Sagittariidae 0.59
Laggar Falcon Falco jugger Falconidae 0.58
Saker Falcon Falco cherrug Falconidae 0.58
Grey Falcon Falco hypoleucos Falconidae 0.58
Martial Eagle Polemaetus bellicosus Accipitridae 0.57
Red Goshawk Erythrotriorchis radiatus Accipitridae 0.56
Mantled Hawk Pseudastur polionotus Accipitridae 0.56
Galapagos Hawk Buteo galapagoensis Accipitridae 0.55
Henst's Goshawk Accipiter henstii Accipitridae 0.55
Mountain Buzzard Buteo oreophilus Accipitridae 0.55
Red-headed Falcon Falco chicquera Falconidae 0.55
Pied Goshawk Accipiter albogularis Accipitridae 0.55
Chestnut-flanked Sparrowhawk Accipiter castanilius Accipitridae 0.55
Red-legged Sparrowhawk Accipiter erythropus Accipitridae 0.55
Meyer's Goshawk Accipiter meyerianus Accipitridae 0.55
Vinous-breasted Sparrowhawk Accipiter rhodogaster Accipitridae 0.55
Fiji Goshawk Accipiter rufitorques Accipitridae 0.55
Jerdon's Baza Aviceda jerdoni Accipitridae 0.55
Madagascar Cuckoo-hawk Aviceda madagascariensis Accipitridae 0.55
Rufous-winged Buzzard Butastur liventer Accipitridae 0.55
Red-necked Buzzard Buteo auguralis Accipitridae 0.55
Japanese Buzzard Buteo japonicus Accipitridae 0.55
Pied Harrier Circus melanoleucos Accipitridae 0.55
Congo Serpent-eagle Dryotriorchis spectabilis Accipitridae 0.55
Wahlberg's Eagle Hieraaetus wahlbergi Accipitridae 0.55
Eastern Chanting-goshawk Melierax poliopterus Accipitridae 0.55
Blyth's Hawk-eagle Nisaetus alboniger Accipitridae 0.55
Sulawesi Hawk-eagle Nisaetus lanceolatus Accipitridae 0.55
Sulawesi Honey-buzzard Pernis celebensis Accipitridae 0.55
Philippine Serpent-eagle Spilornis holospilus Accipitridae 0.55
Long-tailed Hawk Urotriorchis macrourus Accipitridae 0.55
Fox Kestrel Falco alopex Falconidae 0.55
Grey Kestrel Falco ardosiaceus Falconidae 0.55
Dickinson's Kestrel Falco dickinsoni Falconidae 0.55
Spotted Kestrel Falco moluccensis Falconidae 0.55
Madagascar Kestrel Falco newtoni Falconidae 0.55
Oriental Hobby Falco severus Falconidae 0.55
Cryptic Forest-falcon Micrastur mintoni Falconidae 0.55
Unspotted Saw-whet Owl Aegolius ridgwayi Strigidae 0.55
African Long-eared Owl Asio abyssinicus Strigidae 0.55
Madagascar Long-eared Owl Asio madagascariensis Strigidae 0.55
White-browed Owl Athene superciliaris Strigidae 0.55
Dusky Eagle-owl Bubo coromandus Strigidae 0.55
Fraser's Eagle-owl Bubo poensis Strigidae 0.55
Barred Eagle-owl Bubo sumatranus Strigidae 0.55
Rufous-banded Owl Ciccaba albitarsis Strigidae 0.55
Collared Owlet Glaucidium brodiei Strigidae 0.55
Guatemalan Pygmy-owl Glaucidium cobanense Strigidae 0.55
Costa Rican Pygmy-owl Glaucidium costaricanum Strigidae 0.55
Asian Barred Owlet Glaucidium cuculoides Strigidae 0.55
Central American Pygmy-owl Glaucidium griseiceps Strigidae 0.55
Andean Pygmy-owl Glaucidium jardinii Strigidae 0.55
Subtropical Pygmy-owl Glaucidium parkeri Strigidae 0.55
Peruvian Pygmy-owl Glaucidium peruanum Strigidae 0.55
Cuban Pygmy-owl Glaucidium siju Strigidae 0.55
Buffy Fish-owl Ketupa ketupu Strigidae 0.55
Bare-legged Screech-owl Margarobyas lawrencii Strigidae 0.55
Bare-shanked Screech-owl Megascops clarkii Strigidae 0.55
Rufescent Screech-owl Megascops ingens Strigidae 0.55
Koepcke's Screech-owl Megascops koepckeae Strigidae 0.55
Sangihe Scops-owl Otus collari Strigidae 0.55
Sandy Scops-owl Otus icterorhynchus Strigidae 0.55
Arabian Scops-owl Otus pamelae Strigidae 0.55
Mountain Scops-owl Otus spilocephalus Strigidae 0.55
Southern White-faced Owl Ptilopsis granti Strigidae 0.55
Band-bellied Owl Pulsatrix melanota Strigidae 0.55
Brown Wood-owl Strix leptogrammica Strigidae 0.55
Ashy-faced Owl Tyto glaucops Tytonidae 0.55
Sulawesi Masked-owl Tyto rosenbergii Tytonidae 0.55
Hawaiian Hawk Buteo solitarius Accipitridae 0.53
Southern Banded Snake-eagle Circaetus fasciolatus Accipitridae 0.53
Grey-bellied Goshawk Accipiter poliogaster Accipitridae 0.53
Letter-winged Kite Elanus scriptus Accipitridae 0.52
Orange-breasted Falcon Falco deiroleucus Falconidae 0.52
Collared Sparrowhawk Accipiter cirrocephalus Accipitridae 0.52
Variable Goshawk Accipiter hiogaster Accipitridae 0.52
Little Sparrowhawk Accipiter minullus Accipitridae 0.52
Red-chested Goshawk Accipiter toussenelii Accipitridae 0.52
Slate-colored Hawk Buteogallus schistaceus Accipitridae 0.52
Spotted Harrier Circus assimilis Accipitridae 0.52
Pygmy Eagle Hieraaetus weiskei Accipitridae 0.52
Barred Hawk Morphnarchus princeps Accipitridae 0.52
White-rumped Hawk Parabuteo leucorrhous Accipitridae 0.52
Slaty-backed Forest-falcon Micrastur mirandollei Falconidae 0.52
Collared Falconet Microhierax caerulescens Falconidae 0.52
Black-thighed Falconet Microhierax fringillarius Falconidae 0.52
White-throated Caracara Phalcoboenus albogularis Falconidae 0.52
Spot-winged Falconet Spiziapteryx circumcincta Falconidae 0.52
African Barred Owlet Glaucidium capense Strigidae 0.52
Least Pygmy-owl Glaucidium minutissimum Strigidae 0.52
Brown Fish-owl Ketupa zeylonensis Strigidae 0.52
White-throated Screech-owl Megascops albogularis Strigidae 0.52
Balsas Screech-owl Megascops seductus Strigidae 0.52
Speckled Boobook Ninox punctulata Strigidae 0.52
Moluccan Scops-owl Otus magicus Strigidae 0.52
Pel's Fishing-owl Scotopelia peli Strigidae 0.52
Chaco Owl Strix chacoensis Strigidae 0.52
Spotted Wood-owl Strix seloputo Strigidae 0.52
Oriental Bay-owl Phodilus badius Tytonidae 0.52
Bateleur Terathopius ecaudatus Accipitridae 0.51
Striated Caracara Phalcoboenus australis Falconidae 0.51
Egyptian Vulture Neophron percnopterus Accipitridae 0.51
Rufous-breasted Sparrowhawk Accipiter rufiventris Accipitridae 0.49
Black Baza Aviceda leuphotes Accipitridae 0.49
Pacific Baza Aviceda subcristata Accipitridae 0.49
Grey Hawk Buteo plagiatus Accipitridae 0.49
Scissor-tailed Kite Chelictinia riocourii Accipitridae 0.49
Pearl Kite Gampsonyx swainsonii Accipitridae 0.49
Lizard Buzzard Kaupifalco monogrammicus Accipitridae 0.49
Greater Yellow-headed Vulture Cathartes melambrotus Cathartidae 0.49
Lined Forest-falcon Micrastur gilvicollis Falconidae 0.49
Black-and-white Owl Ciccaba nigrolineata Strigidae 0.49
Cinnamon Screech-owl Megascops petersoni Strigidae 0.49
Whiskered Screech-owl Megascops trichopsis Strigidae 0.49
Northern Boobook Ninox japonica Strigidae 0.49
Luzon Boobook Ninox philippensis Strigidae 0.49
Seram Boobook Ninox squamipila Strigidae 0.49
Japanese Scops-owl Otus semitorques Strigidae 0.49
Fulvous Owl Strix fulvescens Strigidae 0.49
Crested Eagle Morphnus guianensis Accipitridae 0.49
Ornate Hawk-eagle Spizaetus ornatus Accipitridae 0.48
Frances's Sparrowhawk Accipiter francesiae Accipitridae 0.48
White-eyed Buzzard Butastur teesa Accipitridae 0.48
Brown Snake-eagle Circaetus cinereus Accipitridae 0.48
Black-chested Snake-eagle Circaetus pectoralis Accipitridae 0.48
Black-breasted Buzzard Hamirostra melanosternon Accipitridae 0.48
Ayres's Hawk-eagle Hieraaetus ayresii Accipitridae 0.48
Black-faced Hawk Leucopternis melanops Accipitridae 0.48
Gabar Goshawk Micronisus gabar Accipitridae 0.48
Bat Falcon Falco rufigularis Falconidae 0.48
Banded Kestrel Falco zoniventris Falconidae 0.48
Mountain Caracara Phalcoboenus megalopterus Falconidae 0.48
Stygian Owl Asio stygius Strigidae 0.48
Black-capped Screech-owl Megascops atricapilla Strigidae 0.48
Luzon Lowland Scops-owl Otus megalotis Strigidae 0.48
African Wood-owl Strix woodfordii Strigidae 0.48
Ryukyu Scops-owl Otus elegans Strigidae 0.47
Tiny Hawk Accipiter superciliosus Accipitridae 0.46
Cassin's Hawk-eagle Aquila africana Accipitridae 0.46
African Hawk-eagle Aquila spilogaster Accipitridae 0.46
Madagascar Buzzard Buteo brachypterus Accipitridae 0.46
Bat Hawk Macheiramphus alcinus Accipitridae 0.46
Dark Chanting-goshawk Melierax metabates Accipitridae 0.46
African Harrier-hawk Polyboroides typus Accipitridae 0.46
African Pygmy-falcon Polihierax semitorquatus Falconidae 0.46
Buff-fronted Owl Aegolius harrisii Strigidae 0.46
Marsh Owl Asio capensis Strigidae 0.46
Black-banded Owl Ciccaba huhula Strigidae 0.46
Amazonian Pygmy-owl Glaucidium hardyi Strigidae 0.46
Puerto Rican Screech-owl Megascops nudipes Strigidae 0.46
Tawny-bellied Screech-owl Megascops watsonii Strigidae 0.46
Pallid Scops-owl Otus brucei Strigidae 0.46
Northern White-faced Owl Ptilopsis leucotis Strigidae 0.46
Tawny-browed Owl Pulsatrix koeniswaldiana Strigidae 0.46
Himalayan Griffon Gyps himalayensis Accipitridae 0.46
Greater Spotted Eagle Clanga clanga Accipitridae 0.46
Spanish Imperial Eagle Aquila adalberti Accipitridae 0.46
Snowy Owl Bubo scandiacus Strigidae 0.45
Bicolored Hawk Accipiter bicolor Accipitridae 0.45
Grasshopper Buzzard Butastur rufipennis Accipitridae 0.45
Zone-tailed Hawk Buteo albonotatus Accipitridae 0.45
Augur Buzzard Buteo augur Accipitridae 0.45
Crane Hawk Geranospiza caerulescens Accipitridae 0.45
Double-toothed Kite Harpagus bidentatus Accipitridae 0.45
Long-crested Eagle Lophaetus occipitalis Accipitridae 0.45
Rufous-bellied Eagle Lophotriorchis kienerii Accipitridae 0.45
Changeable Hawk-eagle Nisaetus cirrhatus Accipitridae 0.45
Madagascar Harrier-hawk Polyboroides radiatus Accipitridae 0.45
Black-and-white Hawk-eagle Spizaetus melanoleucus Accipitridae 0.45
Australian Hobby Falco longipennis Falconidae 0.45
Greater Kestrel Falco rupicoloides Falconidae 0.45
Tawny Fish-owl Ketupa flavipes Strigidae 0.45
Guatemalan Screech-owl Megascops guatemalae Strigidae 0.45
Indian Scops-owl Otus bakkamoena Strigidae 0.45
Sunda Scops-owl Otus lempiji Strigidae 0.45
African Scops-owl Otus senegalensis Strigidae 0.45
Oriental Scops-owl Otus sunia Strigidae 0.45
Jackal Buzzard Buteo rufofuscus Accipitridae 0.44
Long-winged Harrier Circus buffoni Accipitridae 0.44
Black-shouldered Kite Elanus axillaris Accipitridae 0.44
Palm-nut Vulture Gypohierax angolensis Accipitridae 0.44
White-browed Hawk Leucopternis kuhli Accipitridae 0.44
Black Caracara Daptrius ater Falconidae 0.44
Cape Eagle-owl Bubo capensis Strigidae 0.44
Verreaux's Eagle-owl Bubo lacteus Strigidae 0.44
Mottled Owl Ciccaba virgata Strigidae 0.44
Crested Owl Lophostrix cristata Strigidae 0.44
Madagascar Scops-owl Otus rutilus Strigidae 0.44
African Goshawk Accipiter tachiro Accipitridae 0.43
Besra Accipiter virgatus Accipitridae 0.43
Black-collared Hawk Busarellus nigricollis Accipitridae 0.43
Savanna Hawk Buteogallus meridionalis Accipitridae 0.43
African Marsh-harrier Circus ranivorus Accipitridae 0.43
Lesser Spotted Eagle Clanga pomarina Accipitridae 0.43
Rufous-thighed Kite Harpagus diodon Accipitridae 0.43
Amur Falcon Falco amurensis Falconidae 0.43
Pallid Harrier Circus macrourus Accipitridae 0.43
Shikra Accipiter badius Accipitridae 0.43
Grey-lined Hawk Buteo nitidus Accipitridae 0.43
Great Black Hawk Buteogallus urubitinga Accipitridae 0.43
Plumbeous Kite Ictinia plumbea Accipitridae 0.43
Grey-headed Kite Leptodon cayanensis Accipitridae 0.43
Lesser Yellow-headed Vulture Cathartes burrovianus Cathartidae 0.43
Southern Boobook Ninox boobook Strigidae 0.43
Spectacled Owl Pulsatrix perspicillata Strigidae 0.43
Eastern Imperial Eagle Aquila heliaca Accipitridae 0.42
New Zealand Falcon Falco novaeseelandiae Falconidae 0.42
Crowned Eagle Stephanoaetus coronatus Accipitridae 0.42
Grey Goshawk Accipiter novaehollandiae Accipitridae 0.42
Crested Goshawk Accipiter trivirgatus Accipitridae 0.42
Laughing Falcon Herpetotheres cachinnans Falconidae 0.42
Red-throated Caracara Ibycter americanus Falconidae 0.42
Pharaoh Eagle-owl Bubo ascalaphus Strigidae 0.42
Northern Pygmy-owl Glaucidium californicum Strigidae 0.42
Austral Pygmy-owl Glaucidium nana Strigidae 0.42
Elf Owl Micrathene whitneyi Strigidae 0.42
Rufous Owl Ninox rufa Strigidae 0.42
Collared Scops-owl Otus lettia Strigidae 0.42
African Grass-owl Tyto capensis Tytonidae 0.42
Eastern Grass-owl Tyto longimembris Tytonidae 0.42
Hook-billed Kite Chondrohierax uncinatus Accipitridae 0.41
Cinereous Harrier Circus cinereus Accipitridae 0.41
White-tailed Hawk Geranoaetus albicaudatus Accipitridae 0.41
Pearl-spotted Owlet Glaucidium perlatum Strigidae 0.41
Red-footed Falcon Falco vespertinus Falconidae 0.41
Eastern Marsh-harrier Circus spilonotus Accipitridae 0.41
Whistling Kite Haliastur sphenurus Accipitridae 0.41
Barred Forest-falcon Micrastur ruficollis Falconidae 0.41
Spotted Eagle-owl Bubo africanus Strigidae 0.41
Rock Eagle-owl Bubo bengalensis Strigidae 0.41
White-throated Hawk Buteo albigula Accipitridae 0.40
Short-tailed Hawk Buteo brachyurus Accipitridae 0.40
Common Black Hawk Buteogallus anthracinus Accipitridae 0.40
Square-tailed Kite Lophoictinia isura Accipitridae 0.40
Pale Chanting-goshawk Melierax canorus Accipitridae 0.40
Black Falcon Falco subniger Falconidae 0.40
Collared Forest-falcon Micrastur semitorquatus Falconidae 0.40
Brown Boobook Ninox scutulata Strigidae 0.40
Striped Owl Asio clamator Strigidae 0.39
Barking Owl Ninox connivens Strigidae 0.39
Harpy Eagle Harpia harpyja Accipitridae 0.39
Greater Sooty-owl Tyto tenebricosa Tytonidae 0.39
Japanese Sparrowhawk Accipiter gularis Accipitridae 0.39
Swallow-tailed Kite Elanoides forficatus Accipitridae 0.39
Magellanic Horned Owl Bubo magellanicus Strigidae 0.39
Mountain Pygmy-owl Glaucidium gnoma Strigidae 0.39
Tropical Screech-owl Megascops choliba Strigidae 0.39
Australian Masked-owl Tyto novaehollandiae Tytonidae 0.39
Mountain Hawk-eagle Nisaetus nipalensis Accipitridae 0.38
Black Hawk-eagle Spizaetus tyrannus Accipitridae 0.38
Verreaux's Eagle Aquila verreauxii Accipitridae 0.38
Andean Condor Vultur gryphus Cathartidae 0.37
Brahminy Kite Haliastur indus Accipitridae 0.37
White Hawk Pseudastur albicollis Accipitridae 0.37
King Vulture Sarcoramphus papa Cathartidae 0.37
Nankeen Kestrel Falco cenchroides Falconidae 0.37
Chinese Sparrowhawk Accipiter soloensis Accipitridae 0.37
Crested Serpent-eagle Spilornis cheela Accipitridae 0.37
Yellow-headed Caracara Milvago chimachima Falconidae 0.37
Rufous-legged Owl Strix rufipes Strigidae 0.37
Black Sparrowhawk Accipiter melanoleucus Accipitridae 0.37
African Fish-eagle Haliaeetus vocifer Accipitridae 0.37
Cinereous Vulture Aegypius monachus Accipitridae 0.36
Grey-faced Buzzard Butastur indicus Accipitridae 0.36
Upland Buzzard Buteo hemilasius Accipitridae 0.36
Brown Falcon Falco berigora Falconidae 0.36
Northern Hawk-owl Surnia ulula Strigidae 0.36
White-tailed Kite Elanus leucurus Accipitridae 0.36
Brown Goshawk Accipiter fasciatus Accipitridae 0.35
Variable Hawk Geranoaetus polyosoma Accipitridae 0.35
Mississippi Kite Ictinia mississippiensis Accipitridae 0.35
Levant Sparrowhawk Accipiter brevipes Accipitridae 0.35
Western Screech-owl Megascops kennicottii Strigidae 0.35
Black-chested Buzzard-eagle Geranoaetus melanoleucus Accipitridae 0.34
Oriental Honey-buzzard Pernis ptilorhynchus Accipitridae 0.34
Black Eagle Ictinaetus malaiensis Accipitridae 0.34
Crested Caracara Caracara cheriway Falconidae 0.34
Spotted Owlet Athene brama Strigidae 0.34
Little Eagle Hieraaetus morphnoides Accipitridae 0.34
Roadside Hawk Rupornis magnirostris Accipitridae 0.34
Flammulated Owl Psiloscops flammeolus Strigidae 0.34
Tawny Eagle Aquila rapax Accipitridae 0.33
Swamp Harrier Circus approximans Accipitridae 0.33
Red Kite Milvus milvus Accipitridae 0.33
Aplomado Falcon Falco femoralis Falconidae 0.32
Harris's Hawk Parabuteo unicinctus Accipitridae 0.32
Bearded Vulture Gypaetus barbatus Accipitridae 0.32
Lanner Falcon Falco biarmicus Falconidae 0.32
White-bellied Sea-eagle Haliaeetus leucogaster Accipitridae 0.32
Black-winged Kite Elanus caeruleus Accipitridae 0.31
Long-legged Buzzard Buteo rufinus Accipitridae 0.31
Prairie Falcon Falco mexicanus Falconidae 0.31
Ferruginous Pygmy-owl Glaucidium brasilianum Strigidae 0.31
Great Grey Owl Strix nebulosa Strigidae 0.31
Broad-winged Hawk Buteo platypterus Accipitridae 0.31
Booted Eagle Hieraaetus pennatus Accipitridae 0.30
Chimango Caracara Phalcoboenus chimango Falconidae 0.30
Morepork Ninox novaeseelandiae Strigidae 0.29
Eurasian Scops-owl Otus scops Strigidae 0.29
Powerful Owl Ninox strenua Strigidae 0.29
Eurasian Hobby Falco subbuteo Falconidae 0.28
Eurasian Pygmy-owl Glaucidium passerinum Strigidae 0.28
Eleonora's Falcon Falco eleonorae Falconidae 0.28
Northern Saw-whet Owl Aegolius acadicus Strigidae 0.28
Wedge-tailed Eagle Aquila audax Accipitridae 0.27
Ural Owl Strix uralensis Strigidae 0.27
Ferruginous Hawk Buteo regalis Accipitridae 0.27
Short-toed Snake-eagle Circaetus gallicus Accipitridae 0.27
Snail Kite Rostrhamus sociabilis Accipitridae 0.26
Red-shouldered Hawk Buteo lineatus Accipitridae 0.26
Southern Caracara Caracara plancus Falconidae 0.26
Eastern Screech-owl Megascops asio Strigidae 0.26
Sharp-shinned Hawk Accipiter striatus Accipitridae 0.25
American Black Vulture Coragyps atratus Cathartidae 0.25
Northern Harrier Circus hudsonius Accipitridae 0.25
Gyrfalcon Falco rusticolus Falconidae 0.25
Rough-legged Buzzard Buteo lagopus Accipitridae 0.24
Swainson's Hawk Buteo swainsoni Accipitridae 0.24
Spotted Owl Strix occidentalis Strigidae 0.24
European Honey-buzzard Pernis apivorus Accipitridae 0.23
Short-eared Owl Asio flammeus Strigidae 0.23
Merlin Falco columbarius Falconidae 0.23
Cooper's Hawk Accipiter cooperii Accipitridae 0.22
Barred Owl Strix varia Strigidae 0.22
Montagu's Harrier Circus pygargus Accipitridae 0.22
Bonelli's Eagle Aquila fasciata Accipitridae 0.22
Turkey Vulture Cathartes aura Cathartidae 0.21
Western Marsh-harrier Circus aeruginosus Accipitridae 0.20
Black Kite Milvus migrans Accipitridae 0.20
Lesser Kestrel Falco naumanni Falconidae 0.20
Boreal Owl Aegolius funereus Strigidae 0.20
Griffon Vulture Gyps fulvus Accipitridae 0.20
Little Owl Athene noctua Strigidae 0.19
White-tailed Sea-eagle Haliaeetus albicilla Accipitridae 0.19
Great Horned Owl Bubo virginianus Strigidae 0.19
Northern Long-eared Owl Asio otus Strigidae 0.19
Eurasian Eagle-owl Bubo bubo Strigidae 0.18
Hen Harrier Circus cyaneus Accipitridae 0.18
Red-tailed Hawk Buteo jamaicensis Accipitridae 0.17
Burrowing Owl Athene cunicularia Strigidae 0.17
Osprey Pandion haliaetus Pandionidae 0.16
Tawny Owl Strix aluco Strigidae 0.15
Eurasian Sparrowhawk Accipiter nisus Accipitridae 0.15
Eurasian Buzzard Buteo buteo Accipitridae 0.14
American Kestrel Falco sparverius Falconidae 0.14
Common Kestrel Falco tinnunculus Falconidae 0.13
Golden Eagle Aquila chrysaetos Accipitridae 0.12
Northern Goshawk Accipiter gentilis Accipitridae 0.12
Bald Eagle Haliaeetus leucocephalus Accipitridae 0.11
Peregrine Falcon Falco peregrinus Falconidae 0.10
Common Barn-owl Tyto alba Tytonidae 0.10