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A photo of a Yellow-billed Magpie (Pica nuttalli)
Yellow-billed Magpie

Yellow-billed Magpie

Pica nuttalli

The Yellow-billed Magpie, or California Magpie, is a striking member of the corvid family, distinguished by its vibrant yellow bill and eye streak. This large bird is a close relative of the Black-billed Magpie, with which it shares a strong resemblance, save for the notable differences in bill and eye coloration.

Identification Tips

To identify the Yellow-billed Magpie, look for its long tail, black and white plumage, and the contrasting yellow bill and eye streak. These features are key to distinguishing it from its cousin, the Black-billed Magpie, which has a similar size and shape but lacks the yellow coloration.

Habitat

This bird is a native resident of California's Central Valley, where it thrives in the chaparral foothills and mountains. It has a preference for groves of tall trees near rivers and open areas, though it has adapted to urban environments in some cities.

Distribution

The Yellow-billed Magpie is endemic to California, with its range largely confined to the Central Valley and surrounding regions. It is a permanent resident and does not typically stray far from its breeding grounds.

Behaviour

A gregarious species, the Yellow-billed Magpie forms communal roosts and exhibits complex social behaviors, including a unique funeral-like ritual for deceased members of its flock. These birds are also known for their territoriality during the breeding season.

Song & Calls

The vocalizations of the Yellow-billed Magpie are similar to other corvids, consisting of a variety of calls that can be heard around their communal roosts.

Breeding

Pairs construct dome-shaped nests high in trees, often on long branches to deter predators. They may nest in small colonies or solitarily, and exhibit territorial behavior even when nesting in proximity to others. The female incubates a clutch of 5 to 7 eggs, with both parents feeding the nestlings.

Diet and Feeding

An omnivorous forager, the Yellow-billed Magpie's diet includes insects, carrion, acorns, and fruit. It is often seen foraging on the ground, particularly favoring grasshoppers, and is known to scavenge at farms, ranches, and landfills.

Conservation status

The IUCN lists the Yellow-billed Magpie as Vulnerable, with threats including West Nile Virus, habitat loss, and rodenticide poisoning. Conservation efforts are focused on habitat restoration, population monitoring, and reducing the use of harmful chemicals in their environment.

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