Wilson's Plover

Anarhynchus wilsonia

Large black bill is diagnostic. Slightly larger than similar plovers, with large blocky head. Breeding plumage shows thick black band across breast, white forehead, and bolder face pattern; nonbreeding birds show less contrast. Legs dull pinkish. Found on sandy beaches, usually singly but sometimes in small loose flocks. Medium-brown upperparts similar but slightly paler than Semipalmated Plover, notably darker than Snowy or Piping.

识别特征

The breeding male has a black breast band, lores and forecrown, and a rufous mask. Females and non-breeding males have a similar plumage, but the black of the breeding male is replaced by brown or rufous. Non-breeders have a greyer tint to the head and breast band.Immature birds are similar to the female, but the breast band is often incomplete. The adult's upper parts are mainly dark grey, with a short white wing bar and white tail sides. The underparts are white except for a breast band, and the legs are pink, brighter when breeding. The dark bill is large and heavy for a plover of this size. The call is a high weak whistle.<p>Measurements:

分类信息

Genus: Anarhynchus; Family: Charadriidae; Order: Charadriiformes.

学名
Anarhynchus wilsonia
命名信息
(Ord, 1814)
Charadriiformes
Charadriidae
Anarhynchus

分布与栖息地

It is a partial migrant. Birds leave the United States, except Florida, to winter south in Brazil. Some Mexican birds leave in winter for Peru. Furthermore, a small resident population is known from Brazil, it being named as a new subspecies, brasiliensis, in 2008. In 2012 it was established that this is a junior synonym, and the correct name for the subspecies is crassirostris. This also means that one of the subspecies of the greater sand plover had to be renamed.<p>This strictly coastal plover nests on a bare scrape on sandy beaches or sandbars.

迁徙
Complete migrants

行为

Migration pattern: Complete migrants.

保护状况

Population trend: declining.

种群趋势
declining

照片

分布

鸟叫声

其他鸟类

Urrao Antpitta

Urrao Antpitta

Grallaria urraoensis

This antpitta has a very small range in the northern part of Colombia’s western Andes. It was described to science in 2010 and is considered highly endangered. Upperparts and hood are dull chestnut brown, and it has a gray breast and belly. Similar to Chestnut-naped Antpitta, but in Urrao the crown is much duller and throat is chestnut (not gray). Inhabits bamboo-laden understory of high elevation cloud forest, and usually very hard to see, though it sometimes visits a feeder within the Dusky Starfrontlet Nature Reserve. Song is three curt whistles; there is a pause after the first note, and the last note is higher.

Azure-crowned Hummingbird

Azure-crowned Hummingbird

Saucerottia cyanocephala

Medium-sized hummingbird of oak and pine-oak woodlands and adjacent shrubby clearings; also local in lowland pine savannas. Sexes look alike and often look rather dull overall, despite the name. Note the whitish throat and breast offset by a dusky vest, and the dusky brownish rump and tail. Crown and sides of head are blue (rarely catching the light), with a white spot behind the eye and some red at base of bill.

Pearly-eyed Thrasher

Pearly-eyed Thrasher

Margarops fuscatus

A sometimes secretive and sometimes bold resident of many habitats. Overall rather dull colored, but highly vocal. It is similar in shape and size to Scaly-breasted Thrasher and Bahama Mockingbird; told from both by its large pale bill. Told from Scaly-breasted Thrasher by its streaked, not barred underparts. Distinguished from the Bahama Mockingbird by its brown plumage and heavier streaking below. Song is a series of slowly given whistled notes with one to three phrases. Calls are varied, including high thin whistles, brief chirps, and harsh or guttural scolds.

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