Snow Goose flock in flight (Chen caerulescens) {!--흰기러기--> From the U.S. Fish and Wildlife Service's online digital media library. 
Check http://images.fws.gov/ for higher quality version. 
Metadata 
Title: Snow Geese   
Alternative Title: (none)  
Creator: Zahm, Gary  
Source: WO9377-48 
Publisher: U.S. Fish and Wildlife Service 
Contributor: DIVISION OF PUBLIC AFFAIRS 
Language: EN - ENGLISH 
Rights: (public domain) 
Audience: (general) 
Subject: Merced National Wildlife Refuge, California, waterfowl, flock, wetland, bird, animal, wildlife
Date Issued: January 17 2002
The snow goose (Chen caerulescens), consisting of both a white phase and blue phase (Blue Goose), is a North American species of goose commonly collectively referred to as "light geese". Its name derives from the typically white plumage. Some authorities place this species in the more traditional grey goose genus Anser.