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Vancouver Bird of the Week – Warbling Vireo

Vancouver is hosting the 27th International Ornithological Congress and the inaugural Vancouver International Bird Festival Aug. 19-26.
warbling vireo
Warbling Vireo. Photo Liron Gertsman

Vancouver is playing host to two significant bird events this summer — the 27th International Ornithological Congress, which takes place every four years and attracts ornithologists (bird scientists) from around the world, and the inaugural Vancouver International Bird Festival.

Each week leading up to the festival and congress Aug. 19-26, we’ll highlight a different bird. British Columbia is home to 573 species of birds and many can be found in and around Vancouver.

Bird of the Week

Warbling Vireo

Species Name

Vireo gilvus

Appearance

Length: 11-13 centimetres

Wingspan: 22 centimetres

Weight: 10-14 grams

A small passerine with a stout bill, slightly forked tail and short, thick legs. Vireos are similar in appearance to wood warblers but with a slightly larger head and a heavier bill.

They have olive-grey above and whitish below, with a paler supercilium and slate blue legs. Western populations have darker crowns and are somewhat smaller.

Habitat/Behaviour

Their breeding habitat is a deciduous or mixed, open woodlands.

Primarily insectivorous, they will take some berries and other fruit, especially during the winter or when preparing for migration.

Breeding

Warbling vireos are monogamous, build cup-shaped nests in trees, lay between one and five whitish eggs and have one to two broods.

More about birds:

Source: Vancouver International Bird Festival