Similar But Different Birds

A couple of weeks ago, I went to photograph sandhill cranes. While there, I saw what I thought was Canada Geese. They seemed a bit unusual though, they were darker in color and instead of a handful, there were hundreds. I took a few images and thought little more about them. I stopped to talk to a person that led a tour I once took. I mentioned the geese. He told me they were not Canada Geese, they were Cackling Geese. I knew that several years ago, the powers that classify birds, split Canada Geese into 2 separate species: Canada and Cackling. All I ever knew was that the cackling geese were smaller. This person told me that there were other indicators: most have a white ring at the base of their dark neck and their call is more of a cackle than the honk of the Canada Goose; thus their name. So, it was a great experience. I learned something that will help me in the future. By the way, this was the Aleutian subspecies migrating to California’s central Valley from Alaska. They’ll start their trip back in January.

Please click on caption to see higher resolution image.

In November and December, the chinook or king salmon migrate from the ocean into the American River. The salmon breed and die. So, along with the salmon, the population of gulls and Turkey Vultures rise greatly. I assumed that what we see are California Gulls. After all, a gull is a gull. What I learned is we also get Herring Gulls. Both are white with a gray mantle, back and wing feathers. The California Gull is a noticeably darker gray, the Herring Gull is medium gray. The California Gull has yellow legs, dark eyes and a black spot on his bill; sometimes there is both a black and red spot. The Herring Gull has pink legs, yellow eyes and a red spot on his bill. Some of those colors change with the winter molt. I understand we also get the ring billed gull but I haven’t seen one.

Finally, I added 2 other birds for interest. I caught a great egret fishing. I also caught a sleeping great horned owl.

These and other images are available to purchase on my website: www.earthwatcher.us or by contacting larry@earthwatcher.us

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