Yellow-rumped Marshbird

Pseudoleistes guirahuro

Large blackbird with a long, thin bill found in marshes and wetlands. Mostly dark brown with a yellow belly, rump, and shoulders. Sexes similar, but juveniles are browner overall. Can be seen in large groups of up to 50 individuals sometimes with other blackbirds. The call is nasal and buzzy.

识别特征

The yellow-rumped marshbird is named for its yellow belly, flanks, thighs, and rump. Its head is blackish in color; its breast, back, and wings are blackish brown. The species exhibits slight size dimorphism, with males weighing on average 91.2 g and females weighing on average 81.9 g.

分类信息

学名
Pseudoleistes guirahuro
命名信息
(Vieillot, 1819)
Passeriformes
Icteridae
Pseudoleistes

分布与栖息地

The yellow-rumped marshbird is found in southeastern Brazil, eastern Paraguay, northern Uruguay, and the Misiones and Corrientes provinces of northeastern Argentina. Its range in Brazil overlaps with that of the brown-and-yellow marshbird. It is most commonly found in shrubby marsh or moist grasslands and avoids treeless habitats.

迁徙
Resident species

行为

The yellow-rumped marshbird feeds on ground arthropods and small vertebrates. Marshbirds are gregarious and form flocks of 10-20 birds for most of the year. From September through November, single marshbird pairs can be observed, indicating the beginning of the breeding cycle. One individual will gather nest materials, inspect nest sites, and build the nest, while the other produces short songs. After eggs are laid, three to four adult marshbirds can be observed to guard the nest and bring food to chicks, indicating that yellow-rumped marshbirds are regular cooperative breeders.

保护状况

种群趋势
stable

照片

分布

鸟叫声

其他鸟类

Indian Pond-Heron

Indian Pond-Heron

Ardeola grayii

A small heron that is common in most aquatic habitats across the Indian subcontinent. Adults in breeding plumage have a dark reddish brown back that contrasts with a yellowish head, neck, and breast. In nonbreeding plumage they are virtually indistinguishable from nonbreeding Chinese Pond-Heron. In flight, adults appear surprisingly white due to their strikingly white wings, underparts, and tail. Although typically solitary, large numbers often gather where food is plentiful. Prone to seasonally local movements and vagrancy.

Andean Pygmy-Owl

Andean Pygmy-Owl

Glaucidium jardinii

Very small owl of the upper subtropics and temperate forest. Typical pygmy-owl plumage: mostly brown or rufous above, white below with messy brown stripes, and small whitish spots on crown. Sexes similar. Found at higher elevations than other pygmy-owls, mostly from 2,500–3,500 m. Usually seen in the daytime perched at middle or upper levels of forest, often being mobbed by hummingbirds or small passerines. Typically detected by song, which can be given at any time of day but mainly early and late: a series of whistled toots, sometimes with a few quavering notes at the beginning.

Village Indigobird

Village Indigobird

Vidua chalybeata

Nest parasite that lays its eggs in the nests of Red-billed and Brown firefinches. Breeding males are glossy black, while females and non-breeding males are streaky and brown on the back and pale below, with a bold facial pattern. The color of the bill is red in southeast Africa and whitish in western, northern, and central Africa. Found in savanna, scrub, farmland, and towns. Mimics the vocalizations of its host firefinches: low rattling series and high-pitched whistled notes. In southeast Africa, can be separated from other indigobirds by its red bill. Very similar to other indigobirds elsewhere on the continent. Breeding males can be separated by their all-black wings that lack a pale brownish panel. The mimicked vocalizations of its host species can also help confirm identification. In non-breeding plumage, similar to non-breeding Pin-tailed Whydah but separated by red legs.

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Yellow-rumped Marshbird | 鸟镜