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Great Black-backed Gull »

Least Tern

Notes:

Approximate Hatch Weights:

~4.5-7g at hatching

~11g by 1 day old

~36-42g by 17-20 days old

Order: Charadriiformes
Family: Laridae
Common Name: Gulls/Terns/Skimmers
Region: Broad Range
Chick Type: Semi-Precocial
Down: Buffy down with brown and black markings
Skin Color:
Bill: Long and straight and orange to pink with dark tip
Foot Type: Palmate
Gape: Orange
Gape Flanges:
Iris: Dark brown
Legs and Feet: Pink to orange legs and feet

~1st Week - 4.5g

Photo from the Santa Barbara Wildlife Care Network, ruler in centimeters

~1st Week - 4.5g

Photo from the Santa Barbara Wildlife Care Network, ruler in centimeters

~1st Week - 4.5g

Photo from the Santa Barbara Wildlife Care Network, ruler in centimeters

~1st Week - 4.5g

Photo from the Santa Barbara Wildlife Care Network, ruler in centimeters

~1st Week - 4.5g

Photo from the Santa Barbara Wildlife Care Network, ruler in centimeters

~1st Week - 4.5g

Photo from the Santa Barbara Wildlife Care Network

~1st Week

Photo by Marie Travers

~1st Week

Photo by Marie Travers

~1st Week

Photo by Marie Travers

~2nd Week

Photo by Marie Travers

>4 Weeks

Photo by Aaron Budgor

>4 Weeks

Photo by Marie Travers

>4 Weeks

Photo by Marie Travers

Posted on March 31, 2020 by Avery L. Berkowitz. Bookmark the permalink.

Great Black-backed Gull »

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Site created and maintained by Avery Berkowitz and David Grogan.

This site is made possible by the generous photo contributions of many individuals across the United States and Canada. It aims to support collaboration between those working with wildlife to accurately identify baby birds in order to provide them the best possible care.

To contribute photos to further build and expand this database, please email avery.berkowitz1@gmail.com.

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Regions

Broad Range

Eastern

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Chick Type

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Down

Black and gray down with yellow early on

Black down

Brown and white down with brown eye stripes

Brown and yellow down then gray down

Brown and yellow down with brown stripe behind eye

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Brown down with white patches and underside

Brown to black down with naked top of head

Brown with pale stripe above eye

Buffy down then gray down

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Buffy down with dark brown and white markings

Buffy down with dark brown eye-stripe behind eye

Buffy down with dark brown markings

Buffy down with naked face

Dark brown down

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Dark gray down with white underside

Gray and brown down above with white down on underside

Gray down

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Light brown down

Naked

Naked then black down

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Naked then gray/tan down then white down

Sparse black down

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Very short white down with brown markings

White and buffy down with black stripes

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White then gray down

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Yellow down

Yellowish to brown down

Skin

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Pink

Pink to gray

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Pink to yellow around head and black on body

Reddish-brown

Yellow then pink and black

Yellowish

Bill

Black distally and red to orange proximally

Broad and black

Broad and black with pink then yellow

Broad and gray to black

Broad and gray to black with pale tip

Broad and gray to pink

Broad and gray with pink to yellow

Broad and pink with gray base

Curved slightly downward and gray

Hooked and black

Hooked and blue-gray with darker tip

Hooked and gray to black

Hooked and gray to yellow-green

Hooked and gray with yellow tip

Hooked and off-white

Hooked and pink to gray

Hooked and pink to gray with pale tip

Hooked and pink to pale yellow

Long and brown to black with slight downward curve

Long and conical and pinkish to grayish

Long and gray to brown with downward curve

Long and straight and black

Long and straight and black with pale tip

Long and straight and gray to orange

Long and straight and grayish then yellow with black

Long and straight and orange to pink with dark tip

Long and straight and orange-yellow then black

Long and straight and pink then gray

Long and straight and pink to black

Long and straight and pink to orange

Long and straight and pink with black tip

Long and straight and pinkish with black band

Long and straight and yellow to orange

Long and thick with downward curve and orange to yellow

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Short and gray to black

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Short and pink

Short and pink to black

Short and pink to brown

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Short and yellow to gray

Straight and black

Straight and brown to black

Straight and brown-black with yellow

Straight and enlarged around nares

Straight and gray to black

Straight and gray to black with pale tip

Straight and gray to brown

Straight and gray with pink

Straight and orange to yellow

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Straight and pink to brown

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Straight and yellowish to black

Straight and yellowish to brown

Tubenose

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Zygodactyl with only 3 digits

Gape Color

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Gape Flanges Color

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White to pale pink

White to yellow

Yellow

Iris Color

Black

Black to gray

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Brown

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Pale bluish then dark brown

Pale gray to yellow

Yellow

Yellow to orange

Legs and Feet

Black to brown legs and feet

Bright yellow and raptorial feet

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Feathered legs and raptorial feet

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Gray to greenish legs with yellowish feet

Gray-pink then black legs and feet

Green to yellow legs and feet

Light gray legs and feet

Light gray to pale yellow and raptorial feet

Orange legs and feet

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Pink then yellow to green legs and feet

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Pink to gray legs and feet

Pink to orange legs and feet

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Pink to yellowish legs and feet

Proportionally small pink to gray legs and feet

Yellowish legs and feet

Yellowish or pink then brown legs and feet

Yellowish to black legs and feet

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