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Lined Forest Falcon
Micrastur gilvicollis

Status: Lower risk

Population Trend: Stable.

Other Names: Lined Forest-falcon.


Micrastur gilvicollis
click to enlarge
Distribution: Neotropical. Eastern COLOMBIA to southern VENEZUELA south through eastern ECUADOR, eastern PERU, and northeastern BOLIVIA, and east to the GUIANAS and south through Amazonian BRAZIL. more....

Subspecies: Monotypic.

Taxonomy: Peters (1931), Amadon (1964), Amadon and Brown (1968), Meyer de Schauensee (1970), and Blake (1977) considered this form to be a race of M. ruficollis, but it was treated as a separate species by Pinto (1935, 1938, 1947), Hellmayr and Conover (1949), Friedmann (1950), and Phelps and Phelps (1958). Schwartz (1972) showed that they do represent separate species, based on differences in vocalizations and morphology, and that they are broadly sympatric. He left open the question the status of the disjunct M. plumbeus of southwestern Colombia and northwestern Ecuador, which was then treated as a subspecies of gilvicollis by some authors. Most authorities now regard it as a full species. M. gilvicollis forms a superspecies with the newly described M. mintoni.

Movements: Probably non-migratory.

Habitat and Habits: Occurs in lowlands and, less commonly, foothills. Prefers the interior of humid forests. In Ecuador, this species seems to be confined to terra firme forest, unlike the wider-ranging congener M. ruficollis (Ridgely and Greenfield 2001), and in French Guiana, it far outnumbers the latter species in all forest types (Thiollay 2007).more....

Food and Feeding Behavior: Feeds on small mammals, birds, reptiles, and insects. Hunts from mid- and lower levels inside forest, flying from perch to perch, and ambushing prey. Follows mixed-species flocks of small birds, preying upon the birds and the insects and other prey that they flush. more....

Breeding: No information. more....

Conservation: Widespread, but apparently uncommon throughout its extensive range in northern South America, although Tiollay (2007) found it to be the most common raptor in French Guiana. Probably overlooked to some extent. Categorized globally as a species of "Least Concern" by BirdLife International (2007).more....

Important References: 
Amadon, D. 1964. Taxonomic notes on birds of prey. American Museum
  Novitates no. 2166.
Bierregaard, R.O. 1994. Lined Forest-falcon. Pp. 253-254 in del Hoyo, J.,
  A. Elliott, and J. Sargatal (eds). Handbook of birds of the world. Vol. 2.
  New World vultures to guineafowl. Lynx Edicions, Barcelona, Spain.
Ferguson-Lees, J., and D.A. Christie. 2001. Raptors of the world. Houghton
  Mifflin, Boston, MA.
Klein, B.C., and R.O. Bierregaard. 1988. Capture and telemetry techniques
  for the Lined Forest-falcon (Micrastur gilvicollis). Journal of Raptor
  Research 22:29.
Klein, B.C., and R.O. Bierregaard. 1988. Movement and calling behavior of
  the Lined Forest-falcon (Micrastur gilvicollis) in the Brazilian Amazon.
  Condor 90:497-499.
Robinson, S.K. 1994. Habitat selection and foraging ecology of raptors in
  Amazonian Peru. Biotropica 26:443-458.
Schwartz, P. 1972. Micrastur gilvicollis, a valid species sympatric with
  M. ruficollis in Amazonia. Condor 74:399-415.
Valdez, U. 2007. (Abstract) Abundance and movement patterns of
  forest-falcons (Micrastur) in lowland Amazonian rainforest of
  southeastern Peru. Pp. 351-352 in K.L. Bildstein, D.R. Barber, and A.
  Zimmerman (eds.), Neotropical ornithology. Hawk Mountain Sanctuary,
  Orwigsburg, PA.
more....

Sites of Interest:
Xeno-canto
Vocalizations.
VIREO
Lined Forest Falcon photos.
Aves de Rapina do Brasil
Species account with emphasis on Brazil.

Researchers:
Bierregaard, Richard O. "Rob"
Gómez, César
Riba-Hernández, Laura
Valdez, Ursula
Whittaker, Andrew

Last modified: 11/3/2009

Recommended Citation: Global Raptor Information Network. 2014. Species account: Lined Forest Falcon Micrastur gilvicollis. Downloaded from http://www.globalraptors.org on 20 Apr. 2014








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