[order] FALCONIFORMES | [family] Falconidae | [latin] Micrastur gilvicollis | [authority] Vieillot, 1817 | [UK] Lined Forest Falcon | [FR] Carnifex a gorge cendree | [DE] Zweibinden-Waldfalke | [ES] Halcon-montes Plomizo | [NL] Gebandeerde Bosvalk
Subspecies
| Genus | Species | subspecies | Region | Range |
| Micrastur | gilvicollis | SA | Amazonia |
Genus
Members of the genus Micrastur are falcons varying in size from small to quite large. Their wings are short and very rounded. The tail is often long, rounded and arched, but in some forms comparatively shorter. The beak is short, deep and (unusually for a falcon) untoothed. They have long legs. The crown feathers are slightly pointed; those of ear region are narrow, stiff and upsurged, forming a slight ruff. They have large ear openings and hunt in part by sound. There are five species, all in the tropical forests of the Americas.
Physical charateristics
No sexual difference is apparent. The back is blackish-grey and in many individuals the crown and nape are slightly darker. The remiges have a brownish cast; the tail is considerably darker, almost black. Fresh feathers are greyer, old ones are browner. The tail is tipped white and crossing it are
two or three (occasionally one) narrow light bars. The grey bars of the breast seem to average a little less black, somewhat softer, often a bit browner in gilvicollis, but many specimens of both forms are quite similar. In males the barring is finer than in females. The extent of the barring is variable. In
gilvicollis it may extend posteriorly from the breast to greater or lesser degree, especially over the flanks and tibia, even to the crissum (where it is usually quite sparse and limited to the lateral feathers), but most ndividuals
are immaculate, or nearly so, on the belly. Many individuals of concentricus have barring extending equally over the entire underparts. (all have the iris white, the bare facial skin reddish-orange, and the legs yellowish-orange with the claws roughly ?horn? or lighter.
two or three (occasionally one) narrow light bars. The grey bars of the breast seem to average a little less black, somewhat softer, often a bit browner in gilvicollis, but many specimens of both forms are quite similar. In males the barring is finer than in females. The extent of the barring is variable. In
gilvicollis it may extend posteriorly from the breast to greater or lesser degree, especially over the flanks and tibia, even to the crissum (where it is usually quite sparse and limited to the lateral feathers), but most ndividuals
are immaculate, or nearly so, on the belly. Many individuals of concentricus have barring extending equally over the entire underparts. (all have the iris white, the bare facial skin reddish-orange, and the legs yellowish-orange with the claws roughly ?horn? or lighter.
| wingspan min.: | 0 | cm | wingspan max.: | 0 | cm |
| size min.: | 33 | cm | size max.: | 38 | cm |
| incubation min.: | 0 | days | incubation max.: | 0 | days |
| fledging min.: | 0 | days | fledging max.: | 0 | days |
| broods: | 0 | eggs min.: | 0 | ||
| eggs max.: | 0 |
Range
South America : Amazonia
Habitat
The Lined Forest-Falcon is found in lowland mature tropical forests.
Reproduction
No data
Feeding habits
The Lined Forest-Falcon is an opportunistic generalist in diet that uses a sit-and-wait strategy for prey capture, frequently preying on lizards and large insects
Video Lined Forest Falcon
httpv://www.youtube.com/watch?v=HJqPIlqs8t8
copyright: Shiripuno
Conservation
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Ranging from East Colombia through South Venezuela to the Guianas and South throughout Amazonia. In Suriname the commonest bird of prey in the interior.
Ranging from East Colombia through South Venezuela to the Guianas and South throughout Amazonia. In Suriname the commonest bird of prey in the interior.
Migration
Sedentary in all of its range.
Distribution map
