Aphelocoma insularis
The Island Scrub Jay (Aphelocoma insularis) is a robust and striking corvid, endemic exclusively to Santa Cruz Island off the coast of Southern California. It is the largest of the scrub-jays, measuring an imposing 29-31 cm (11.4-12.2 in) in length and weighing 120-130g (4.2-4.6 oz), typically larger than its mainland relatives. This species is characterized by its uniformly deep, brilliant blue plumage covering its head, wings, and tail, sharply contrasting with a dusky-gray back and underpa...
This species thrives in the diverse shrublands, chaparral, and oak woodlands (particularly those dominated by island oak) across Santa Cruz Island, typically at elevations from sea level up to the island's highest peaks.
The Island Scrub Jay is an omnivore, primarily feeding on acorns, a wide variety of insects, spiders, small vertebrates (such as lizards, mice, and eggs), and fruits and berries; acorn caching is crucial for overwinter survival.
Island Scrub Jays are active during daylight hours, typically roosting in dense vegetation at night. Their foraging strategies are highly adaptable: they glean insects from foliage and bark, probe soil for invertebrates, and famously cache acorns in vast quantities, burying them for later consump...
The Island Scrub Jay boasts one of the most restricted ranges of any North American bird, being found exclusively on Santa Cruz Island, the largest of California's Channel Islands, located off the coast of Southern California, USA. This species is entirely resident, meaning it does not undertake ...
Near Threatened
- The Island Scrub Jay is the only bird species endemic to a single Channel Island, making it a unique treasure of California's biodiversity. - Despite its name, its deep blue coloration is far more uniform and intense than its mainland "scrub" jay relatives, lacking the distinctive white eyebrow...