Black-polled Yellowthroat
Geothlypis speciosa
Very local but fairly common in highland marshes of central Mexico; endemic. Favors extensive reed beds bordering lakes and adjacent bushes near water. Male is distinctive, with black mask blending into dark greenish upperparts (lacks pale border to mask of Common Yellowthroat, which occurs in same areas); also note extensively yellow underparts and dark legs. Female is darker overall than female Common Yellowthroat, with dark (not pinkish) legs. Voice subtly distinctive.
Identification
The black-polled yellowthroat is 12.5-14 cm (4.9-5.5 inches) long and weighs 10–11.8 grams (0.35-0.42 ounces). The male is olive above and yellow below, with a black mask. The female is duller.
Taxonomy
- Scientific name
- Geothlypis speciosa
- Authority
- Sclater, PL, 1859
- Order
- Passeriformes
- Family
- Parulidae
- Genus
- Geothlypis
Range and habitat
It is endemic to central Mexico and the southwestern Mexican Plateau, in Guanajuato, Michoacán, and México State.<p>Its natural habitats are freshwater lakes and freshwater marshes.<p>It is classified as Vulnerable by the IUCN, threatened by habitat loss.
- Migration
- Resident species
Conservation
- Population trend
- declining
Photos
Distribution
Bird Calls
Other Birds

Malagasy Brush-Warbler
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Medium-sized brown bird with a long, spiky tail. Found in a wide variety of moist and woody habitats, including rainforest, wet scrub, plantations, and gardens. Absent or very local in much of west and southwest Madagascar. Skulks in thick undergrowth. Incessantly given call is a Geiger counter-like ticking. Darker brown than Subdesert Brush-Warbler, with a lower-pitched call and little overlap in range. Similar to Madagascar Swamp-Warbler, but has less distinct breast streaking and white eyebrow, and is generally found in scrub rather than marsh.

Ayacucho Thistletail
Asthenes ayacuchensis
Poorly known thistletail found only in a small area of the high Andes east of the city of Ayacucho in southern Peru. It is brown above, gray below, with a long wispy tail and a reddish-orange chin patch. It has a darker chin patch than Vilcabamba Thistletail and Puna Thistletail, and is not known to overlap with either species. It inhabits scrub and stunted forest near treeline. Song is a rapid, high-pitched trill.

Chestnut-bellied Chat-Tyrant
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