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Varied thrush

Zoothera naevius

Photo by Elaine Wilson (Tom Clark)
Common name:
varied thrush (en); tordo-de-colarinho (pt); grive à collier (fr); zorzal cinchado (es); halsbanddrossel (de)
Order Passeriformes
Family Turdidae
This species is found from Alaska and north-western canada, along the pacific coast of North America down to northern California. The more northern populations migrate south to winter in south-western Canada, along the western United States and in north-western Mexico.

These birds are 20-28 cm long and have a wingspan of 34-42 cm. They weigh 65-100 g.

The varied thrush is mostly found in dense, moist woodlands, mainly coniferous forests in the boreal and temperate zones. They winter in various woodlands, parks and gardens.

They feed on or near the ground, eating insects and other invertebrates, berries, seeds and acorns.

Varied thrushes nest in an open cup, built by the female using twigs, leaves, lichens and bark. The nest is placed in a low scrub, near a stream bank or at the base of a tree branch, against the trunk. There the female lays 2-5 greenish-blue eggs with light brown spots, which are incubated by the female for 12-14 days. The chicks are fed by both parents and fledge 13-15 days after hatching. Each pair may raise 1-2 clutches per year.

IUCN status – LC (Least Concern)
This species has a large breeding range and global population estimated at 26 million individuals. The population has undergone a large decline of roughly 75% over the last 4 decades, mostly due to deforestation and clear cutting, but they are not considered threatened in any portion of their range at present.
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