- 16.9–21.3 in
- 24 in
- 5.3–6 oz
- Pie à bec jaune (French)
- Urraca (Spanish)
- The Yellow-billed Magpie is omnivorous, eating a variety of plant and animal foods. Insects, however, make up most of the diet. The Yellow-billed Magpie has been seen pecking insects off the backs of mule deer.
- The covered nest requires maintenance to the canopy throughout the nesting season. The Yellow-billed Magpie usually builds a new nest each year, but if a nest fails early in the breeding season the pair will refurbish an old nest for a renesting attempt rather than build a new one.
- The oldest recorded Yellow-billed Magpie was a female and at least 9 years, 11 months old when she was found in California.
Oak savanna, open areas with large trees, and along streams. Also forages in grassland, pasture, fields, and orchards.
Ground-dwelling invertebrates, grain, acorns, carrion, and small mammals.
- Clutch Size
- 4–7 eggs
- Egg Description
- Greenish blue or olive with dark spots and speckles.
- Condition at Hatching
- Naked and helpless.
Nest a domed bowl, made primarily of sticks and mud. Lined with hair, grass, bark, or rootlets. Placed high in large tree, in small colonies.
Forages primarily on ground. Holds food with feet and pecks it.
Yellow-billed Magpie numbers declined bu almost 3% per year between 1966 and 2014, resulting in a cumulative decline of 73%, according to the North American Breeding Bird Survey. Partners in Flight estimates a global breeding population of 90,000 with 100% in the United States. This U.S.-Canada Stewardship species rates a 16 out of 20 on the Continental Concern Score and
are on the 2014 State of the Birds Watch List, which lists bird species that are at risk of becoming threatened or endangered without conservation action.
- Reynolds, M. D. 1995. Yellow-billed Magpie (Pica nuttalli). In The Birds of North America, No. 180 (A. Poole and F. Gill, eds.). The Academy of Natural Sciences, Philadelphia, PA, and The American Ornithologists' Union, Washington, D.C.
- North American Bird Conservation Initiative, U.S. Committee. 2014. State of the Birds 2014 Report. U.S. Department of Interior, Washington, DC.
- Partners in Flight. 2012. Species assessment database.
- USGS Patuxent Wildlife Research Center. 2015. Longevity records of North American Birds.
- USGS Patuxent Wildlife Research Center. 2014. North American Breeding Bird Survey 1966–2014 Analysis.