Keyword: Neck sac
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SCE051-00413
The Magnificent Frigatebird (Fregata magnificens) on North Seymour, in the Galapagos Islands.
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SCE051-00404
The Magnificent Frigatebird (Fregata magnificens) on North Seymour, in the Galapagos Islands.
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SCE051-00398
The Magnificent Frigatebird (Fregata magnificens) on North Seymour, in the Galapagos Islands.
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SCE051-00399
The Magnificent Frigatebird (Fregata magnificens) on North Seymour, in the Galapagos Islands.
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SCE051-00400
The Magnificent Frigatebird (Fregata magnificens) on North Seymour, in the Galapagos Islands.
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SCE051-00391
In Galapagos National Park, a male great frigatebird (Fregata minor) distends his striking red gular sac in hopes of attracting a mate.
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SCE051-00373
Two male great frigatebirds (Fregata minor) as they display their giant red neck sacks in hope of attracting a female, on Tower Island in Galapagos National Park.
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SCE051-00374
Two male great frigatebirds (Fregata minor) as they display their giant red neck sacks in hope of attracting a female, on Tower Island in Galapagos National Park.
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SCE051-00351
Great frigatebirds (Fregata minor) in flight on Tower Island in Galapagos National Park. The males display their giant red neck sacks in hope of attracting a female.
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SCE051-00354
Great frigatebirds (Fregata minor) in flight on Tower Island in Galapagos National Park. The males display their giant red neck sacks in hope of attracting a female.
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SCE051-00051
The Magnificent Frigatebird (Fregata magnificens) on North Seymour, in the Galapagos Islands.
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SCE051-00047
The Magnificent Frigatebird (Fregata magnificens) on North Seymour, in the Galapagos Islands.
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SCE051-00044
On the North Seymour Island in Galapagos National Park, a male great frigatebird (Fregata minor) distends his striking red gular sac in hopes of attracting a mate.
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SCE051-00045
On the North Seymour Island in Galapagos National Park, a male great frigatebird (Fregata minor) distends his striking red gular sac in hopes of attracting a mate.
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SCE051-00046
The red gular sac of a male great frigatebird (Fregata minor), on North Seymour Island in Galapagos National Park
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SCE051-00021
In Galapagos National Park, a male great frigatebird (Fregata minor) distends his striking red gular sac in hopes of attracting a mate.
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SCE051-00022
In Galapagos National Park, a male great frigatebird (Fregata minor) distends his striking red gular sac in hopes of attracting a mate.
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SCE051-00020
In Galapagos National Park, a male great frigatebird (Fregata minor) distends his striking red gular sac in hopes of attracting a mate.
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BIR022-00094
Male and female greater sage grouse (Centrocercus urophasianus) at a display ground near Craig, CO.
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BIR022-00095
Male and female greater sage grouse (Centrocercus urophasianus) at a display ground near Craig, CO.
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BIR022-00096
Male greater sage grouse (Centrocercus urophasianus) at a display ground near Craig, CO.
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BIR022-00099
Male greater sage grouse (Centrocercus urophasianus) at a display ground near Craig, CO.
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BIR022-00093
Male and female greater sage grouse (Centrocercus urophasianus) at a display ground near Craig, CO.
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BIR022-00091
Male and female greater sage grouse (Centrocercus urophasianus) at a display ground near Craig, CO.
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BIR022-00092
Male and female greater sage grouse (Centrocercus urophasianus) at a display ground near Craig, CO.
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BIR022-00090
Male and female greater sage grouse (Centrocercus urophasianus) at a display ground near Craig, CO.
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APC001-00041
A male Attwater’s prairie chicken booming at The Nature Conservancy’s Texas City Prairie Preserve.
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APC001-00042
A wild male Attwater’s prairie-chicken booming at The Nature Conservancy’s Texas City Prairie Preserve.
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APC001-00043
Close-up portrait of a male Attwater’s prairie-chicken.
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APC001-00045
Wild male Attwater’s prarie-chickens face off for the chance to breed with females at The Nature Conservancy’s Texas City Prairie Preserve.
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APC001-00046
An Attwater’s prairie-chicken shakes off the rain near Texs City, Texas.
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APC001-00049
Wild male Attwater’s prarie-chickens face off for the chance to breed with females at The Nature Conservancy’s Texas City Prairie Preserve.
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APC001-00051
Male Attwater’s prarie-chickens face off.
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APC001-00032
Close-up portraits of a male Attwater’s prairie-chicken (endangered).
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APC001-00033
An endangered Attwater’s prairie-chicken over one of its last booming grounds in Texas’ coastal prairie.
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APC001-00034
A male Attwater’s prairie chicken booming.