Ash-Throated Flycatcher

myiarchus cinerascens

The Ash-Throated Flycatcher (Myiarchus cinerascens) is a charismatic and vocal member of the flycatcher family, recognized for its energetic aerial pursuits of insects. These medium-sized passerines are quintessential inhabitants of arid and semi-arid landscapes across western North America, where their distinctive calls often echo through open woodlands and scrublands. Their presence signifies healthy shrub and tree habitats, as they rely on existing cavities for nesting, often integrating unique materials like shed snakeskins into their nests, a peculiar behavior that fascinates naturalists. As a neotropical migrant, their annual journeys connect diverse ecosystems, making them an interesting subject for migration studies and a beloved sign of summer in their breeding grounds.

生息地: Found in open woodlands, arid scrub, riparian areas, and oak or pinyon-juniper woodlands, often in dry, hilly country.

外見

The Ash-Throated Flycatcher is a medium-sized songbird, typically measuring around 19-21 cm in length with a wingspan of 28-32 cm. Its plumage is characterized by a distinctive ash-gray throat and breast, contrasting with a pale yellow belly. The back and head are olive-brown, and it often exhibits a subtle, peaked crest. Key identification features include rusty outer tail feathers, visible both when perched and in flight, and two faint wing bars. Its bill is relatively broad and flat, typical of insectivorous birds that catch prey in mid-air.

界Animalia門Chordata綱Aves目Passeriformes科Tyrannidae属Myiarchus

Ash-Throated Flycatcher

カテゴリ

鳥類

レア度

Common

危険度

1/5 · 非常に低い

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おもしろい事実

Ash-Throated Flycatchers are one of the few bird species known to regularly incorporate shed snakeskins into their nests, a behavior believed to deter predators.

Their vocalizations are quite varied, including a distinctive 'ka-brick' call and a gruff 'prrrrit' that helps identify them even when hidden in foliage.

They are long-distance migrants, traveling thousands of kilometers between their breeding grounds in North America and their wintering grounds in Mexico and Central America.

Unlike many songbirds that build open-cup nests, these flycatchers are obligate cavity nesters, relying on pre-existing holes in trees or snags.

特殊能力

Ash-Throated Flycatchers are expert aerial hunters, making quick sallies from a perch to snatch insects directly out of the air. Their agile flight and keen eyesight allow for precision captures.

Unlike many songbirds, this species exclusively nests in tree cavities, often utilizing old woodpecker holes or natural crevices. This provides protection from predators and elements.

A unique behavior involves lining their nests with shed snakeskins, a practice thought to deter predators or parasites. This quirky habit makes their nests particularly distinctive.

サイズと詳細

長さ: 19-21 cm
翼開長: 28-32 cm
体重: 0.02-0.03 kg
寿命: 5-8 年
Top Speed: 35 km/h
一度の産卵数: 3-5
抱卵期間: 14-16 日
渡りの距離: 4000 km

食性と食事

The Ash-Throated Flycatcher's diet consists predominantly of insects caught on the wing, supplemented occasionally by small fruits and berries. Their foraging strategy is highly effective in their preferred arid habitats.