[Mystery bird] Brown Pelican, Pelecanus occidentalis, photographed at Monterey Bay, California. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 7 May 2010 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/750s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
Can you tell me something remarkable about this mystery bird’s beak/mouth?
The pelican’s gullet pouch really can “hold more than its belly can” (as claimed by a well-known poem). The bird’s pouch holds up to 2½ gallons, the stomach only about one gallon.