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Stephen Debus
   Photo

Stephen Debus

   Biography

Started as an an amateur bird and raptor enthusiast from childhood. BA (biological and behavioural sciences), Grad. Diploma in Natural Resources (wildlife), MSc (zoology), PhD (zoology). Work as an ecological consultant (fauna surveys and assessments)for government and industry. A founding member of the Australasian Raptor Association (1979), editor of ARA newsletter 1980-1989, (renamed) Boobook 2004-2011. Editor of Australian Field Ornithology 1994-2011. Author of field guide to Australian raptors.

Honorary Associate, Division of Zoology
University of New England  
Armidale,  NSW  2351  Australia
Phone: +61 2 6773 2510, +61 2 6773 2409 Fax: +61 2 6773 3814
Email: sdebus@une.edu.au


   Research Interests

Natural history, ecology, behaviour, conservation biology of Australian raptors, especially eagles and falcons. Current target species Black Falcon, White-bellied Sea-Eagle.

Species of Interest: 
  • Black Falcon
  • Grey Falcon
  • Australian Black-shouldered Kite
  • Square-tailed Kite
  • Black-breasted Buzzard
  • Red Goshawk
  • White-bellied Sea Eagle
  • Collared Sparrowhawk
  • Grey Goshawk
  • Wedge-tailed Eagle
  • Little Eagle
  • Australian Hobby


   Publications

BOOK REVIEWS

Debus, S. 2012. (Review of) The eagle watchers, by Ruth E. Tingay and T.E. Katzner. Corella 36:50-51.       pdf

Debus, S. 2012. (Review of) Raving about ravens, by Mary Ellen Talmage. Australian Field Ornithology 29:55-56.

Debus, S. 2011. (Review of) Raptor survey and monitoring: a field guide for African birds of prey, by Gerard Malan. Corella 35:38.       pdf

PUBLICATIONS

Aumann, T.A., D.J. Baker-Gabb, and S.J.S. Debus. 2016. Breeding diets of four raptor species in the Australian tropics. Corella 40(1):13-16.       pdf

Debus, S.J.S., D.J. Baker-Gabb and T.A. Aumann. 2015. Parental time-budgets, breeding behaviour and affinities of the Red Goshawk Erythrotriorchis radiatus. Corrella 49(4):87-92.       pdf

Charley, D., H. Lutter and S.J.S. Debus. 2014 Breeding behaviour and prey of Black Falcons, Falco subniger, including food-caching. South Australian Ornithologist 40(1):11-30       pdf

Debus, S.J.S. and J.B. Searle. 2014. Surveys of the Red Goshawk (Erythrotriorchis radiatus) and other raptors on the Weipa Plateau, Cape York Peninsula. Sundbird 44(2):36-51       pdf

Debus, S.J.S., G. Baker, D. Owner, and B. Nottidge. 2014. Response of White-bellied Sea-Eagles Haliaeetus leucogaster to encroaching human activities at nest sites. Corella 38(3):53-62.       pdf

Barnes, C.P. and S.J.S. Debus. 2014. Observations on the post-fledging period of the Collared Sparrowhawk(Accipiter cirrocephalus). Sunbird 44(1):12-23.       pdf

Debus, S.J.S. 2013. Breeding of the Hooded Robin Melanodryas cucullata in native and exotic woodlands near Armidale, New South Wales. Corella 37(3):49-56       pdf

Debus, S.J.S. and A.E. Zuccon. 2013. Observations on hunting and breeding behaviour of the Black Falcon (Falco subniger ). Sunbird 43(1): 12-26.       pdf

Debus, S.J.S., J. Olsen, D. Judge, and M. Butterfield. 2013. Numbers of breeding Little Eagles Hieraaetus morphnoides in the Australian Capital Territory in relation to atlas counts. Corella 37(2):30-32       pdf

Olsen, J., S.J.S. Debus, D. Judge. 2013. Declining Little Eagles Hieraaetus morphnoides and increasing rabbit numbers near Canberra: is secondary poisoning by Pindone the problem? Corella 37(2):33-35       pdf

Olsen, J., S.J.S. Debus, A.B. Rose and D. Judge. 2013. Diets of White-bellied Sea-Eagles Haliaeetus leucogaster and Whistling Kites Haliastur sphenurus breeding near Canberra, 2003-2008. Corella 37(1):13-18       pdf

Barnes, C.P., and S.J.R. Debus. 2012. A snapshot in the post-fledging period of the Black Falcon. Australian Field Ornithology 29:86-88.       pdf

Debus, S. 2012. Birds of prey of Australia: a field guide. CSIRO. 208 pp.

Debus, S.J.S. 2012. Hunting behavior of Black Falcons. Australian Field Ornithology 29:83-85.       pdf

Debus, S.J.S.and H.A. Ford. 2012. Responses of Eastern Yellow Robins Eopsaltria australis to translocation into vegetation remnants in a fragmented landscape. Pacific Conservation Biology 18:194-202       pdf

O'Donnell, W.B., and S.J.S. Debus. 2012. Nest-sites and foraging of the White-bellied Sea-Eagle Haliaeetus leucogaster on the subtropical eastern coast of Australia. Australian Field Ornithology 29:149-159.       pdf

Debus, S. 2011. Relationships of Australian falcons. Boobook 29:9.       pdf

Debus, S. 2011. Raptors and racing pigeons. Boobook 29:11-13.

Debus, S.J.S., and L. Tsang. 2011. Notes on Black Falcons Falco subniger breeding near Tamworth, New South Wales. Australian Field Ornithology 28:13-26.       pdf

Olsen, J., S.J.S. Debus, D. Judge and A.B.Rose. 2013. Diets of Wedge-tailed Eagles Aquila audax and Little Eagles Hieraaetus morphnoides breeding near Canberra, 2008-2009. Corella 37(2):25-29       pdf

Olsen, J., and S. Debus. 2011. Conspicuous prey taken by raptors and butcherbirds. Boobook 29:9-11.       pdf

Debus, S.J.S., A.J. Ley, and A.B. Rose. 2010. Diet of the Eastern Barn Owl 'Tyto (javanica) delicatula' in Diamantina National Park, South-western Queensland, in 2008-2009. Australian Field Ornithology 27:179-183.       pdf

Debus, S., and J. Olsen. 2010. Some aspects of the biology of the Black Falcon Falco subniger. Corella 35:29-36.       pdf

Olsen, J., S. Debus, and S. Trost. 2010. Is the Timor Southern Boobook a separate species? Boobook 28(1):10.       pdf

Olsen, J., D. Judge, E. Fuentes, A.B. Rose, and S.J.S. Debus. 2010. Diets of Wedge-tailed Eagles (Aquila audax) and Little Eagles (Hieraaetus morphnoides) breeding near Canberra, Australia. Journal of Raptor Research 44:50-61.       pdf

Cherriman, S.C., A. Foster, and S.J.S. Debus. 2009. Supplementary notes on the breeding behaviour of Wedge-tailed Eagles Aquila audax. Australian Field Ornithology 26:142-147.       pdf

Debus, S. 2009. What do we know, and need to know, about Little Eagles? Boobook 27:12-13.

Ford, H.A., J.R. Walters, C.B. Cooper, S.J.S. Debus, and V.A.J. Doerr. 2009. Extinction debt or habitat change? – Ongoing losses of woodland birds in north-eastern New South Wales, Australia. Biological Conservation 142:3182-3190.        pdf

Debus, S.J.S. 2008. The effect of Noisy Miners on small bush birds: an unofficial cull and its outcome. Pacific Consrvation Biology 14:185-190.       pdf

Trost, S., J. Olsen, A.B. Rose, and S.J.S. Debus. 2008. Winter diet of Southern Boobooks Ninox novaeseelandiae in Canberra 1993-2004. Corella 32:66-70.       pdf

Debus, S.J., and A.J. Ley. 2009. Aspects of the breeding cycle of the Little Eagle Hieraaetus morphnoides. Australian Field Ornithology 26:76-99.       pdf

Debus, S. 2009. Eagle recovery team canned. Boobook 27:38.

Debus, S. 2009. Black Falcon hunting Galahs. Boobook 27:45.

Debus, S. 2009. Red Goshawk National Recovery Plan. Boobook 27:38.

Debus, S. 2009. Australian Hobby nest? Western Australian Bird Notes 130:3.

Debus, S. 2009. Threatened raptors. Bird Observer 860:25.

Debus, S. 2008. The new Australian bird checklist: outcomes for Australasian raptors. Boobook 26:3.

Debus, S. 2008. Little Eagles in New England, NSW. Boobook 26:7.

Debus, S. 2008. Diurnal raptors under threat. Bird Observer 856:5-8.

Debus, S. 2008. Red Goshawk. Bird Observer 856:10-11.

Debus, S.J.S. 2008. Biology and diet of the White-bellied Sea-Eagle Haliaeetus leucogaster breeding in northern inland New South Wales. Australian Field Ornithology 25:165-193.       pdf

Debus, S.J.S., A.J. Ley and A.B. Rose. 2008. Further dietary items of the Eastern Barn Owl Tyto javanica in Diamantina National Park, Queensland. Australian Field Ornithology 25:149-152       pdf

Debus, S.J.S., T.S. Hatfield, A.J. Ley, and A.B. Rose. 2007. Breeding biology and diet of the Wedge-tailed Eagle Aquila audax in the New England region of New South Wales. Australian Field Ornithology 24:93-120.       pdf

Debus, S.J.S., T.S. Hatfield, A.J. Ley, and A.B. Rose. 2007. Breeding biology and diet of the Little Eagle Hieraaetus morphnoides in the New England region of New South Wales. Australian Field Ornithology 24:137-157.       pdf

Debus, S.J.S., and C. Wood. 2007. Growth of a captive nestling Masked Owl Tyto novaehollandiae. Australian Field Ornithology 24:49-53.

Debus, S.J.S., H.A. Ford, and S.M. Trémont. 2006. Bird communities in remnant woodland on the upper north-west slopes of New South Wales. Australian Zoologist 33:519-529.       pdf

Debus, S.J.S., A.J. Ley, and A.B. Rose. 2007. Winter diet of a Barn Owl and a Nankeen Kestrel in Diamantina National Park, western Queensland. Sunbird 37:1-8.

Brigham, R.M., S.J.S. Debus, and F. Geiser. 2006. Cavity selection for roosting, and roosting ecology of forest-dwelling Australian Owlet-nightjars (Aegotheles cristatus). Australian Journal of Zoology 23:424-429.

Courtney, J., and S.J.S. Debus. 2006. Observations on the post-fledging period of the Barn Owl Tyto alba. Australian Field Ornithology 23:159-162.       pdf

Courtney, J., and S.J.S. Debus. 2006. Breeding habits and conservation status of the Musk Lorikeet Glossopsitta concinna and Little Lorikeet G. pusilla in northern New South Wales. Australian Field Ornithology 23:109-124.

Debus, S.J., G.S. Olde, N. Marshall, J. Meyer, and A.B. Rose. 2006. Foraging, breeding behaviour and diet of a family of Black-shouldered Kites Elanus axillaris near Tamworth, New South Wales. Australian Field Ornithology 23:130-143.       pdf

Debus, S.J.S. 2006. Breeding and population parameters of robins in a woodland remnant in northern New South Wales, Australia. Emu 106:147-156.       pdf

Debus, S.J.S. 2006. Breeding-habitat and nest-site characteristics of Scarlet Robins and Eastern Yellow Robins near Armidale, New South Wales. Pacific Conservation Biology 12:261-271.

Debus, S.J.S. 2006. The role of intense nest predation in the decline of Scarlet Robins and Eastern Yellow Robins in remnant woodland near Armidale, New South Wales. Pacific Conservation Biology 12:279-287. S. J.       pdf

Debus, S. 2006. Wedge-tailed Eagle robs Little Eagle. Boobook 24:43.

Debus, S. 2006. Taxonomic status of the Tasmanian Wedge-tailed Eagle. Boobook 24:38-39.

Debus, S. 2006. Avian food items of Little Eagle. Boobook 24:44.

Debus, S. 2006. Taxonomic status of Sanford's Sea-eagle. Boobook 24:8.

Debus, S. 2006. More on the affinities of some Australasian raptors. Boobook 24:6-7.

Debus, S.J.S., G. Lollback, D.L. Oliver, and S.C. Cairns. 2006. The birds of Bulgunnia and Mulyungarie Stations in the pastoral zone of arid South Australia. South Australian Ornithologist 35:27-37.       pdf

Debus, S.J.S., and A.B. Rose. 2006. Supplementary data on breeding and diet of the Northern Forest Raven Corvus tasmanicus boreus. Autralian Field Ornithology 23:96-101.

Lutter, H., M.B. McGrath, M.A. McGrath, and S.J.S. Debus. 2006. Observations on nesting Brahminy Kites Haliastur indus in northern New South Wales. Australian Field Ornithology 23:177-183.       pdf

Barnes, C.P., A.B. Rose and S.J.S. Debus. 2005. Breeding behaviour and diet of a family of Barking owls Ninox connivens in south-eastrn Queensland. Australian Field Ornithology 22:182-195       pdf

Debus, S. 2005. Affinities of the Wedge-tailed Eagle. Boobook 23:33.

Debus, S. 2005. White-bellied Sea-eagles breeding in the Australian Capital Territory? Canberra Bird Notes 30:146-147.

Debus, S.J.S. and G. Lollback. 2005. Breeding behaviour of the Restless Flycatcher near Armidale, New South Wales. Australian Field Ornithology 22:22-28

Debus, S.J.S. and A.B. Rose. 2005. Spring diet of Pied Currawongs at Imbota Nature Reserve, Armidale, New South Wales. Corella 29:19-21

Debus, S.J.S., J.A. Ford, and A.B. Rose. 2005. Breeding-season diet of a pair of Barking Owls near Armidale, New South Wales. Corella 29:15-16.        pdf

Debus, S.J.S., T.S. Hatfield, G.S. Olde, and A.B. Rose. 2005. Breeding behaviour and diet of a pair of Black Falcons Falco subniger in northern New South Wales. Australian Field Ornithology 22:165-181.       pdf

Olsen, J., and S. Debus. 2005. A comment on some errors in the literature regarding Australian owls. Corella 29:97-98.

Debus, S., J. Olsen, and A.B. Rose. 2004. Diet of the Barn Owl Tyto alba near Lake Frome in arid South Australia. Corella 28(2):40-42.       pdf

Lutter, H., M. Lutter, A.B. Rose, and S.J.S. Debus. 2004. Breeding biology and diet of the Square-tailed Kite on the mid-north coast of New South Wales. Australian Field Ornithology 21:141-157.       pdf

Olsen, J., S. Debus, A.B. Rose, and G. Hayes. 2004. Breeding success, cliff characteristics and diet of Peregrine Falcons at high altitude in the Australian Capital Territory. Corella 28:33-37.       pdf

Debus, S.J.S., and A.B. Rose. 2003. Diet of a Barking Owl Ninox connivens in the channel country of south-western Queensland. Corella 27:18-19.       pdf

Lutter, H., R. Dinnie, and S.J.S. Debus. 2003. Square-tailed Kites breeding in northern coastal New South Wales: post-fledging diet and behaviour. Australian Field Ornithology 20:94-104.       pdf

Debus, S.. 2002. Distribution, taxonomy, status and major threatening processes of owls of the Australasian region. in Newton, I., R.Kavanagh, J. Olsen, I. Taylor. Ecology and conservation of owls. CSIRO Publishing. Collingwood, Australia. pp. 363       pdf

Griffiths, H., H. Lutter, and S.J.S. Debus. 2002. Breeding and diet of a pair of Square-tailed Kites Lophoictinia isura on the mid-north coast of New South Wales. Australian Bird Watcher 19:184-193.       pdf

Olsen, P., and S. Debus. 2002. Red Goshawks and other 'red' raptors. Wingspan 12:12-19.

Debus, S.J.S. 2001. Surveys of the Barking Owl and Masked Owl on the north-west slopes of New South Wales. Corella 25:5-11.

Debus, S., and P. Olsen. 2001. Grey Falcons and other 'grey' raptors. Wingspan 11:12-17.

Barnes, C.P., E.E. Zillmann, A.B. Rose, and S.J.S. Debus. 2001. Diet and biology of Square-tailed Kites Lophoictinia isura breeding in south-eastern Queensland: nest building to post-fledging. Australian Bird Watcher 19:28-43.        pdf

Debus, S.J.S., L.R. Agnew, and M. Schulz. 2001. Surveys of the Grass Owl Tyto capensis in coastal New South Wales. Australian Bird Watcher 19:94-102.

Bischoff, T., H. Lutter, and S. Debus. 2000. Square-tailed Kites breeding on the mid-north coast of New South Wales. Australian Bird Watcher 18:233-240.       pdf

Brown, B., F. Brown, and S.J.S. Debus. 2000. Further observations on a pair of Square-tailed Kites nesting near Grafton, New South Wales. Australian Bird Watcher 18:270-273.       pdf

Debus, S.J.S., and A.B. Rose. 2000. Diet of Grey Falcons Falco hypoleucos breeding extralimitally in New South Wales. Australian Bird Watcher 18:280-281.

Harrington, G.N., and S.J.S. Debus. 2000. Dietary items of the Rufous Owl Ninox rufa on the Atherton Tableland, North Queenland. Australian Bird Watcher 18:251-252.

Loyn, R.H., and S.J.S. Debus. 2000. Description of juvenile Fearful Owl. Australian Bird Watcher 18:288-289.

Olsen, P., and S.J.S. Debus (eds.). 2000. (Book) Selected Australasian Falconiformes; conservation assessment and management plan. Conservation Breeding Specialist Group, Species Survival Commission, World Conservation Union, Apple Valley, MN.

Debus, S. 1992. A comment on the Slaty-backed Goshawk Accipiter luteoschistaceus. Muruk 5:61.

Debus, S.J.S., and A.B. Rose. 1999. Notes on the diet of the Wedge-tailed Eagle Aquila audax. Australian Bird Watcher 18:38-41.

Debus, S.J.S., R.B. Shepherd, and A.B. Rose. 1999. Non-breeding diet of the Barking Owl near Armidale, New South Wales. Australian Bird Watcher 18:43-45.

Debus, S. 1998. (Book) The birds of prey of Australia: a field guide. Oxford University Press, Melbourne, Australia.

Debus, S.J.S., R.B. Shepherd, and A.B. Rose. 1998. Diet of the Barking Owl Ninox connivens near Armidale, New South Wales. Australian Bird Watcher 17:302-305.

Czechura, G., and S. Debus (eds.) 1997. (Book) Australian Raptor Studies II. Birds Australia Monographs 3. Birds Australia, Melbourne, Australia.

Debus, S.J.S. 1997. The Barking Owl in New South Wales. Australian Birds 30:53-80.

Debus, S.J.S. 1997. A survey of the raptors of Jervis Bay National Park. Australian Birds 30:29-44.

Mathieson, M.T., S.J.S. Debus, A.B. Rose, P.J. McConnell, and K.M. Watson. 1997. Breeding diet of the Letter-winged Kite Elanus scriptus and Black-shouldered Kite E. axillaris during a House Mouse plague. Sunbird 27:65-71.       pdf

Debus, S.J.S. 1996. Further observations on the Square-tailed Kite. Australian Birds 29:44-53.

Debus, S.J.S. 1996. Problems in identifying juvenile Square-tailed Kites. Australian Bird Watcher 16:260-264.

Debus, S.J.S. 1995. The morphs of Solomon Islands Accipiter spp. -- a comment on Webb (1992). Emu 95:71-72.

Debus, S.J.S. 1995. Surveys of large forest owls in northern New South Wales: methodology, calling behaviour and owl responses. Corella 19:38-50.

Debus, S.J.S. 1995. Aerial display by Spotted Harrier Circus assimilis. Australian Bird Watcher 16:167-168.

Kavanaugh, R.P., S.J.S. Debus, and R.J. Turner. 1995. Diet and habitat of the Barking Owl Ninox connivens in New South Wales. Australian Bird Watcher 16:137-144.

Debus, S.J.S. 1994. The Sooty Owl Tyto tenebricosa in New South Wales. Australian Birds 28:S4-S19.

Debus, S.J.S. 1994. What is the Christmas Island Goshawk? Australian Bird Watcher 15:377-379.

Debus, S.J.S., and C. Edelstam. 1994. Etymology, type locality and morphology of the Chestnut-shouldered (Bürger's) Goshawk Erythrotriorchis buergersi. Australian Bird Watcher 15:380-382.       pdf

Debus, S.J.S., and A.B. Rose. 1994. The Masked Owl Tyto novaehollandiae in New South Wales. Australian Birds 28:S39-S64.

Debus, S.J.S., C. Edelstam, and D.A. Mead. 1994. The black morph of the Chestnut-shouldered (Burger's) Goshawk Erythrotriorchis buergesi. Australian Bird Watcher 15:212-217.       pdf

Debus, S.J.S., and C.J. Chafer. 1994. The Powerful Owl Ninox strenua in New South Wales. Australian Birds 28:S20-S38.

Debus, S.J.S. 1993. Further notes on owls from the diaries of E.L. Hyem. Australian Birds 27:22-27.

Debus, S.J.S. 1993. The mainland Masked Owl Tyto novahollandiae: a review. Australian Bird Watcher 15:168-191.

Debus, S.J.S. 1993. The status of the Red Goshawk Erythrotriorchis radiatus in New South Wales. Pp. 182-191 in P. Olsen (ed.), Australian raptor studies. Australasian Raptor Association, Moonee Ponds, Victoria, Australia.

Debus, S.J.S., A.J. Ley, S.M. Tremont, R.M. Tremont, and J.L. Collins. 1993. Breeding behaviour and diet of the Collared Sparrowhawk Accipiter cirrhocephalus in northern New South Wales. Australian Bird Watcher 15:68-91.       pdf

Debus, S.J.S., I.A.W. McAllan, and A.K. Morris. 1993. The Square-tailed Kite Lophoictinia isura in New South Wales. Australian Birds 26:104-118.

Debus, S.J.S. 1993. Further comments on the Square-tailed Kite in South Australia. South Australian Ornithologist 31:145-146.

Debus, S.J.S., I.A.W. McAllan, and D.A. Mead. 1993. Museum specimens of the Red Goshawk Erythrotriorchis radiatus. I. Annotated list of specimens. Sunbird 23:5-28.

Debus, S.J.S., I.A.W. McAllan, and D.A. Mead. 1993. Museum specimens of the Red Goshawk Erythrotriorchis radiatus. II. Morphology, biology and conservation status in eastern Australia. Sunbird 23:75-89.

Debus, S.J.S. 1992. The Black-breasted Buzzard Hamirostra melanosternon: a review. Australian Bird Watcher 14:243-257.       pdf

Debus, S.J.S., and G.V. Czechura. 1992. The Square-tailed Kite Lophoictinia isura in Queensland. Sunbird 22:1-18.

Debus, S.J.S., R.D. Earle, G.J. Millard, and C.R. Parker. 1992. Breeding behaviour of a pair of Square-tailed Kites. Australian Birds 26:1-13.

Debus, S.J.S. 1991. Further notes on territory, breeding and plumage of the Little Eagle. Australian Birds 25:1-10.       pdf

Debus, S.J.S. 1991. Further observations on the Black-breasted Buzzard Hamirostra melanosternon using stones to break eggs. Australian Bird Watcher 14:138-143.

Debus, S.J.S. 1991. An annotated list of New South Wales records of the Red Goshawk. Australian Birds 24:72-89.

Debus, S.J.S. 1991. The Square-tailed Kite Lophoictinia isura in South Australia. South Australian Ornithologist 31:57-71.       pdf

Debus, S.J.S., A.J. Ley, S. Tremont, and R. Tremont. 1991. Breeding behaviour and diet of the Australian Hobby Falco longipennis in northern New South Wales. Australian Bird Watcher 14:123-137.       pdf

Debus, S.J.S. 1990. A note on the Masked Owl Tyto novaehollandiae. Australian Birds 24:29-36.

Debus, S.J.S. 1990. Daily food consumption of two captive Little Eagles. Corella 14:169-171.

Olsen, P.D., S.J.S. Debus, G.V. Czechura, and N.J. Mooney. 1990. Comparative feeding ecology of the Grey Goshawk Accipiter novaehollandiae and Brown Goshawk Accipiter fasciatus. Australian Bird Watcher 13:178-191.       pdf

Debus, S.J.S. 1989. Plumages and moult of the Little Eagle Hieraaetus morphnoides. Australian Bird Watcher 13:103-113.       pdf

Debus, S.J.S., and C.E. Silveira. 1989. The Square-tailed Kite Lophoictinia isura in Victoria. Australian Bird Watcher 13:118-123.

Debus, S.J.S., and G.V. Czechura. 1989. The Square-tailed Kite Lophoictinia isura: a review. Australian Bird Watcher 13:81-97.

Debus, S.J.S., and G.V. Czechura. 1988. Field identification of the Red Goshawk Erythrotriorchis radiatus. Australian Bird Watcher 12:154-159.

Debus, S. 1988. Search for Red Goshawk in New South Wales. Bird Observer 679:100.

Debus, S.J.S., and G.V. Czechura. 1988. The Red Goshawk Erythrotriorchis radiatus: a review. Australian Bird Watcher 12:175-199.

Badman, F.J., and S.J.S. Debus. 1987. Field identification of the Black-breasted Buzzard and Square-tailed Kite. Australian Bird Watcher 12:112-117.

Debus, S. 1987. Field notes on Meyer's and Chestnut-sided [sic, = -shouldered] Goshawks. Muruk 2:68-69.

Czechura, G.V., S.J.S. Debus, and N.J. Mooney. 1987. The Collared Sparrowhawk Accipiter cirrhocephalus: a review and comparison with the Brown Goshawk Accipiter fasciatus. Australian Bird Watcher 12:35-62.       pdf

Debus, S. 1986. The small Hieraaetus eagles on four continents: a superspecies? Gabar 1:36-39.

Czechura, G.V., and S.J.S. Debus. 1986. The Australian Hobby Falco longipennis: a review. Australian Bird Watcher 11:185-207.       pdf

Czechura, G.V., and S.J.S. Debus. 1985. The Grey Falcon Falco hypoleucos: a summary of information. Australian Bird Watcher 11:9-16.

Czechura, G.V., and S.J.S. Debus. 1985. The Black Falcon Falco subniger: a summary of information and comparison with the Brown Falcon Falco berigora. Australian Bird Watcher 11:80-91.

Debus, S.J.S. 1985. Seasonal changes in raptor numbers at Armidale, New South Wales. Corella 9:114-120.

Sonter, C., and S.J.S. Debus. 1985. The Brown Falcon Falco berigora as a predator of snakes. Australian Bird Watcher 11:92-93.

Debus, S.J.S. 1984. Further notes on nesting Little Eagles. Australian Bird Watcher 10:196-201.

Debus, S.J.S. 1984. On the field characters of Little Eagles. Australian Bird Watcher 10:204-205.

Debus, S.J.S. 1984. Plumage: Little Eagle Hieraaetus morphnoides. Corella 8:51-52.

Debus, S.J.S. 1984. Biology of the Little Eagle on the Northern Tablelands of New South Wales. Emu 84:87-92.       pdf

Debus, S.J.S. 1984. Weights and measurements: Little Eagle Hieraaetus morphnoides. Corella 8:52.

Debus, S.J.S. 1983. Behaviour and vocalisations of nesting Little Eagles. Australian Bird Watcher 10:73-78.       pdf

Debus, S.J.S. 1983. Food of the Whistling Kite at Armidale, N.S.W. Corella 7:62-63.

Debus, S.J.S. 1982. A record of the Red Goshawk. Sunbird 12:14-15.

Debus, S.J.S. 1981. The biology of the Little Eagle Hieraaetus morphnoides on the New England tablelands, N.S.W. Dip. Natural Resources thesis, University of New England, Armidale, New South Wales, Australia.

Debus, S.J.S. 1981. The attack and strike behaviour of the Brown Goshawk. Corella 5:116.

Debus, S.J.S. 1981. A further note on Brown Goshawk display. Australian Bird Watcher 9:95.

Debus, S.J.S. 1981. Square-tailed Kite flight display. Australian Bird Watcher 9:26.

Debus, S.J.S. 1980. Displays of the Brown Goshawk. Australian Bird Watcher 8:258-259.

Debus, S.J. 1978. Notes on Wedge-tailed Eagle behaviour. Corella 2:54-55.



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