Feeding Behavior

Does much foraging on the ground, running and pausing on open lawns; apparently locates earthworms by sight (not, as had been suggested, by hearing them move underground). When not nesting, usually forages in flocks.

Eggs

Usually 4, sometimes 3-7. Pale blue or "robin's-egg blue." Incubation by female, 12-14 days. Young: Both parents feed young, though female does more. Parents very aggressive in defense of nest. Young leave the nest about 14-16 days after hatching. Male may tend the fledged young while female begins second nesting attempt. 2 broods per season, sometimes 3.

Young

Both parents feed young, though female does more. Parents very aggressive in defense of nest. Young leave the nest about 14-16 days after hatching. Male may tend the fledged young while female begins second nesting attempt. 2 broods per season, sometimes 3.

Diet

Mostly insects, berries, earthworms. In early summer, insects make up majority of diet; also feeds on many earthworms, snails, spiders, other invertebrates. Feeds heavily on fruit, especially in winter (fruit accounts for perhaps 60% of diet year-round); mainly wild berries, also some cultivated fruits. Young are fed mostly on insects and earthworms.

Nesting

Males arrive before females on nesting grounds and defend territories by singing, sometimes by fighting. In early stages of courtship, female may be actively pursued by one or several males. Nest: Female does most of nest building with some help from male. Site on horizontal branch of tree or shrub, usually 5-25' above ground, rarely on ground or up to 70' high; also nests on ledges of houses, barns, bridges. Nest is a cup of grasses, twigs, debris, worked into solid foundation of mud, lined with fine grasses and plant fibers.