
For Male Cardinals, the Redder the Better
Feather brightness may indicate superior genes in species that sport crimson feathers.
Adult male. Photo: Gary Robinette/Audubon Photography Awards
Haemorhous mexicanus
Conservation status | Now abundant over much of North America. In some parts of East, may be competing with Purple Finches to the detriment of the latter. Local populations in some areas have been hard hit by a bacterial infection called conjunctivitis, which swells their eyes shut and makes it difficult for them to feed themselves. |
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Family | Finches |
Habitat | Cities, suburbs, farms, canyons. Original habitat was probably streamside trees and brush in dry country, woodland edges, chaparral, other semi-open areas. Now most commonly associated with humans in cities, towns, and farmland, especially in areas with lawns, weedy areas, trees, buildings. Avoids unbroken forest or grassland. |
Forages on ground, while perching in weeds, or up in trees and shrubs. Except when nesting, usually forages in flocks. Will come to feeders for seeds, especially sunflower seeds, and to hummingbird feeders for sugar-water.
4-5, sometimes 2-6. Pale blue, with black and lavender dots mostly at larger end. Incubation is by female, about 13-14 days. Young: Both parents feed nestlings. Young leave the nest about 12-15 days after hatching. Up to 3 broods per year, perhaps sometimes more.
Both parents feed nestlings. Young leave the nest about 12-15 days after hatching. Up to 3 broods per year, perhaps sometimes more.
Mostly seeds, buds, berries. Almost all of diet is vegetable matter. Feeds mainly on weed seeds. Other important items include buds and flower parts in spring, berries and small fruits in late summer and fall. Also eats a few insects, mostly small ones such as aphids. Young are fed on regurgitated seeds.
Pairs may begin to form within flocks in winter, and some paired birds may remain together all year. In breeding season, male performs flight-song display, singing while fluttering up with slow wingbeats and then gliding down. Male feeds female during courtship and incubation. Males may sing at any time of year, and females also sing during spring. Nest: Wide variety of sites, especially in conifers, palms, ivy on buildings, cactus, holes in manmade structures, averaging about 12-15' above the ground. Sometimes use sites such as cavities, hanging planters, old nests of other birds. Nest (built mostly by female) is open cup of grass, weeds, fine twigs, leaves, rootlets, sometimes with feathers, string, or other debris added.
Audubon’s scientists have used 140 million bird observations and sophisticated climate models to project how climate change will affect this bird’s range in the future.
Zoom in to see how this species’s current range will shift, expand, and contract under increased global temperatures.
Choose a temperature scenario below to see which threats will affect this species as warming increases. The same climate change-driven threats that put birds at risk will affect other wildlife and people, too.
Feather brightness may indicate superior genes in species that sport crimson feathers.
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