探検鳥類

Brown-headed Cowbird

Molothrus ater

The Brown-headed Cowbird is a small bird with a brown head and a shiny black body. They are known for laying their eggs in other birds' nests, which is a unique way of raising their young!

生息地: Grasslands

外見

The Brown-headed Cowbird male is glossy black with a distinct brown head. Females are plain grayish-brown. Both have a short, conical beak adapted for seed-eating, and are smaller than a robin.

AnimaliaChordataAvesPasseriformesIcteridaeMolothrus
Brown-headed Cowbird
feathered trait badgesocial trait badgeomnivorous trait badgegrassland trait badge
Brown-headed Cowbird

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

A single female cowbird can lay over 30 eggs in one breeding season!

Baby cowbirds often hatch earlier than host chicks, giving them a head start!

They often follow large animals, like cows, to catch insects stirred up by hooves!

They've been recorded laying eggs in over 220 different bird species' nests!

特殊能力

能力

Master Nest Finder

Brown-headed Cowbird can quickly locate other bird's nests because they are excellent observers, helping them lay eggs stealthily.

能力

Egg Disguise

Brown-headed Cowbird has eggs that often blend in with host eggs, helping them trick parents into incubating their young.

能力

Rapid Development

Brown-headed Cowbird chicks can grow faster than host chicks, helping them outcompete for food and attention.

サイズと詳細

長さ
16-22 cm
翼開長
30-36 cm
体重
0.03-0.06 kg
寿命
2-8 年
Top Speed
40 km/h
一度の産卵数
1
抱卵期間
10-13 日
渡りの距離
2000 km

食性と食事

These adaptable birds eat lots of seeds and juicy insects, finding food wherever they can!

年齢による違い: Young chicks are fed by host parents, primarily insects. Adults forage for a mixed diet.

主な食物

  • Grass seeds
  • Weed seeds
  • Grains
  • Beetles
  • Grasshoppers
  • Caterpillars

採餌方法

  • Foraging

生態系とのつながり

parasitizes

Fox Sparrow

Passerella iliaca

Lays eggs in their nest

parasitizes

Red-eyed Vireo

Vireo olivaceus

Often hosts cowbird chicks

eaten by

Cooper's Hawk

Accipiter cooperii

Hunts adult cowbirds

eats

Differential Grasshopper

Melanoplus differentialis

A key part of their insect diet

特徴

別名

まだ別名はありません。

コレクション

安全性

危険度

1/5 · 非常に低い

Enjoy watching birds from a distance and don't try to touch or catch them.

よくある質問

Brown-headed Cowbirdの長さは何ですか?

16-22 cm

Brown-headed Cowbirdの翼開長は何ですか?

30-36 cm

Brown-headed Cowbirdの体重は何ですか?

0.03-0.06 kg

Brown-headed Cowbirdの寿命は何ですか?

2-8 年

Brown-headed Cowbirdのtop Speedは何ですか?

40 km/h

Brown-headed Cowbirdは何を食べますか?

These adaptable birds eat lots of seeds and juicy insects, finding food wherever they can!

Brown-headed Cowbirdは通常どこに生息していますか?

Grasslands

Brown-headed Cowbirdはどのように狩りをしますか?

Foraging

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