A male Great Frigatebird (Fregata minor) with a partially inflated gular sac. Midway Atoll National Wildlife Refuge.

Filename: DAH_090327_32002.jpg
Copyright: © David Andrew Hartley. All Rights Reserved.
Image Size: 4256x2832 / 7.5MB; www.davehartleyphoto.com; Adult Bird Color Image David Andrew Hartley Day Eastern Island Fregata minor palmerstoni Full Length Great Frigatebird Horizontal Male Midway Atoll Midway Atoll National Wildlife Refuge National Wildlife Refuge Nobody One Animal Outdoors Remote Side View Wildlife