Island Scrub-Jay

Island Scrub-Jay aka. Island Jay aka. Santa Cruz Jay aka. Santa Cruz Island Scrub-Jay
Prisoners Harbor, Santa Cruz Island, Channel Islands National Park, Ventura, California, USA
July 2018
Member of the Crows and Jays Family
§A Party of Jays§

~True Bird Fact~ Once considered to be a sub-species of Scrub-Jay, but spun off into his own species in 1995 (while the other Scrub-Jays became Florida and Western based on where they lived). Since then, we've also seen Western split into Woodhouse's and California Scrub-Jays. Complicated stuff for a bunch of birds that look very alike. Let's see just how alike, shall we?

Island Scrub-Jays are supposedly brighter in color, larger (by 15%), and have a larger beak (20%) than their mainland relatives. The species split about 150,000 years ago, and the specialized island lifestyle (i.e. thick-shelled acorns = thicker, stronger beak) has resulted in these changes manifesting fairly quickly. Side by side like this? I can kinda see it. They also have somewhat different personalities, with these Island guys having less of a fear of people and more curiosity. After I first spotted them, they seemed to follow me around for a while and see what I was up to. Which one do you think is which, reader? Highlight for answer- Top is California, Bottom Island

How Endangered Are They? One of the rarest birds in the USA, there are only about 2,300 of these guys, and they only live on Santa Cruz Island, one of several islands that are part of California's Channel Islands National Park. While they're pretty easy to find once you're there, their entire habitat is less than 100 square miles, which makes them vulnerable to catastrophic events, like a fire, or the outbreak of disease. They are categorized as Vulnerable by the IUCN. They are one of only two species that are endemic (found nowhere else) to California, along with bird blog alum Yellow-billed Magpie.

This great, great bird was first described by

Henry Henshaw

(1850 - 1930)

Born in Massuchutsets, he got his start as a field naturalist when he had to give up school due to poor health, and instead went on a collecting trip to Louisiana. I don't really know how that is better for your health, but I guess it worked for Henry. He went on a number of successful collecting trips throughout the Southwest. During this time he co-founded a lot of bird related clubs, including the Nuttall Ornithological Club, the American Ornithologists' Union, and the National Geographic Society.

In 1893 another bout of ill health led to him moving to Hawaii (has poor health ever been better for anyone than it was for this guy?) He continued to research birds there, and his witnessing of the mass extinction of native Hawaiian birds led him to dedicate the rest of his life to conservation and the popularization of birding. He gave permission for his popular birding book, Fifty Common Birds of Farm and Orchard, to be published in National Geographic, which led to the creation of the National Geographic Field Guide to Birds of North America. His lobbying efforts led to the Migratory Bird Treaty Act being signed into law in 1918. He seems like he was a really good guy.