อินทรีหัวขาว vs นกเลขานุการ

Haliaeetus leucocephalus เปรียบเทียบกับ Sagittarius serpentarius

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Side-by-Side Comparison

คุณสมบัติ อินทรีหัวขาว นกเลขานุการ
ชื่อวิทยาศาสตร์ Haliaeetus leucocephalus Sagittarius serpentarius
อันดับ Accipitriformes Accipitriformes
วงศ์ตระกูล Accipitridae Sagittariidae
สถานะการอนุรักษ์ Least Concern Endangered
ความยาว 79.0 cm (31.1 in) 130.0 cm (51.2 in)
กว้างปีก 203.0 cm (79.9 in) 210.0 cm (82.7 in)
น้ำหนัก 4300.0 g (151.68 oz) 3700.0 g (130.51 oz)
อาหาร Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … Snakes, lizards, small mammals, and large insects. Hunts on foot, stomping prey to death with …
จำนวนไข่ 1-4 1-4
Population Trend
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Size Comparison

Body Length
อินทรีหัวขาว 79.0 cm
นกเลขานุการ 130.0 cm
กว้างปีก
อินทรีหัวขาว 203.0 cm
นกเลขานุการ 210.0 cm
น้ำหนัก
อินทรีหัวขาว 4300.0 g
นกเลขานุการ 3700.0 g
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Habitat Comparison

ถิ่นที่อยู่อาศัยร่วมกัน

อินทรีหัวขาว only

นกเลขานุการ only

ไม่มี

อินทรีหัวขาว

Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.

นกเลขานุการ

Open grasslands, savannas, and light woodland across sub-Saharan Africa. Avoids dense forests and very arid regions.

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Song & Call Comparison

อินทรีหัวขาว

เสียงร้อง

High-pitched, chattering whistle: a rapid 'kleek-kik-ik-ik-ik'. Surprisingly weak and thin for such a large raptor. Also gives a lower 'kwit-kwit' call near the nest.

นกเลขานุการ

เสียงร้อง

A surprisingly deep, resonant croaking 'kowrr-kowrr' often heard at dawn on African savannas. Also gives pig-like grunting sounds. Mostly silent compared to true songbirds.

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Geographic Range & Migration

อินทรีหัวขาว

North America from Alaska and Canada through the contiguous United States to northern Mexico.

นกเลขานุการ

Sub-Saharan Africa from Senegal and Somalia south to South Africa. Resident throughout its range.

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สถานะการอนุรักษ์

Least Concern

อินทรีหัวขาว

Endangered

นกเลขานุการ

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How to Tell Them Apart

อินทรีหัวขาว

ขนนก

Adults have a dark brown body with a striking white head and tail. Juveniles are mottled brown and white, reaching full adult plumage at age five.

ปาก

Large, hooked, bright yellow bill

นกเลขานุการ

ขนนก

Grey body plumage with black flight feathers and thigh feathers. Distinctive long black crest feathers trail from the back of the head. Orange-red bare facial skin.

ปาก

Short, strong, hooked greyish bill with a yellowish cere

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About These Birds

อินทรีหัวขาว

The bald eagle is the national bird and symbol of the United States. Once endangered due to DDT pesticide use, it made a remarkable recovery and was removed from the endangered species list in 2007. These powerful raptors build the largest tree nests of any bird, some weighing over two tons.

นกเลขานุการ

The secretary bird is the only raptor that hunts primarily on foot, striding through grasslands on crane-like legs up to 1.2 meters tall. Its name may derive from the crest feathers resembling quill pens tucked behind a secretary's ear. The species is classified as Endangered due to habitat loss and decline across much of its range.

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