Summary ²

The Heermann's Gull (Larus heermanni) is a gull resident in the United States and Mexico. Of the current population of about 150,000 pairs, 90% nest on the island of Isla Rasa off Baja California in the Gulf of California, with smaller colonies as far north as California and as far south as Nayarit. After breeding, birds commonly disperse to central California, and less commonly north as far as British Columbia and south as far as Guatemala....

Sources and Credits

1. (c) Jamie Chavez, some rights reserved (CC BY-NC), http://www.flickr.com/photos/20709090@N00/3134610154
2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Larus_heermanni

More Info

• iNaturalist NZ taxon page
• Animal Diversity Web
• Biodiversity Heritage Library
• BOLD Systems BIN search
• CalPhotos
• Global Biodiversity Information Facility (GBIF)
• Maryland Biodiversity Project
• NatureServe Explorer 2.0
• VertNet
• Xeno-canto

iNaturalist NZ Map