Hudson's Black-Tyrant
Knipolegus hudsoni
Highly migratory flycatcher that breeds in central Argentina from around September through March, then disperses north to Bolivia and Paraguay, and occasionally wanders even farther. Male is glossy black with a silvery, black-tipped bill. He has a white on the underside of the wing that is usually hidden while perched. Female is brown and buff with white wingbars, cinnamon rump and tail base, and faint mottling on the breast. Very similar to White-winged Black-Tyrant; female is paler on the breast and belly, but males are virtually indistinguishable in the field. Inhabits stunted forest, scrub, and overgrown clearings.
Taxonomy
- Scientific name
- Knipolegus hudsoni
- Authority
- Sclater, PL, 1872
- Order
- Passeriformes
- Family
- Tyrannidae
- Genus
- Knipolegus
Range and habitat
- Breeding range
- SA : c Argentina
- Non-breeding range
- to n Bolivia
- Migration
- Complete migrants
Conservation
- Population trend
- stable
Photos
Distribution
Bird Calls
Other Birds

Lesser Antillean Flycatcher
Myiarchus oberi
An inconspicuous, relatively tame, medium-sized flycatcher of woodlands and tall scrub. Typically perches motionless below the canopy of the tree before sallying forth in pursuit of prey. Distinguished from similar species within its range by combination of gray chest, yellow belly, and rust-brown undertail. Often first detected by its plaintive, drawn out “pheee” or “pheeuuu” song. Also makes a variety of “pip” and rolling trill calls.

White-eyed Slaty-Flycatcher
Melaenornis fischeri
Large, long-tailed flycatcher. The wing and tail are dark gray and the head and underparts paler gray. In the northern portion of the range, shows a huge pale eye-ring; in the south and west, shows a much narrower, grayish eye-ring. Found in montane habitats including forest edge, woodland, and gardens. Often in pairs. Vocalizations include high-pitched whistles and scratchy notes. Subspecies without a bold eye-ring are somewhat like African Dusky Flycatcher, but are larger and grayer. Other gray flycatchers are unlikely to be found in montane habitats.

American Goshawk
Astur atricapillus
Powerfully-built forest-dwelling hawk, scarce across much of range. Adults are distinctive if seen well: bulky and broad-winged, gray above and whitish below with fine barring, prominent pale eyebrow, and dark reddish eye. Immature very similar to Cooper's Hawk, but larger and more powerful, with broader wings and tail, usually more obvious pale eyebrow (but Cooper’s can have this, too!), and heavy streaking below extending onto undertail coverts. In most suburban areas, Cooper's is much more likely; goshawk typically requires extensive mature forest. Very aggressive around the nest. Feeds on large prey such as hares and grouse.
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