The Green Heron (Butorides virescens) is largely a bird of tropical and warm temperate areas and is at the northern edge of its distribution in British Columbia. It is migratory in northeastern North America and resident in warmer climates. In British Columbia, the Green Heron breeds mostly in the Georgia Depression Ecoprovince in the southwestern corner of the province; most local Green Herons migrate, but a few overwinter. The Green Heron has colonized British Columbia within the last 40 years. Its population appears to be expanding as its range becomes less restricted. Harsh winters likely slow population growth in British Columbia. As of 1994, the breeding population in British Columbia was probably between 38 and 500 pairs, augmented with dispersing birds from the United States in the late summer and fall. Green Herons in British Columbia probably reach reproductive age at one year and breed once a year, mostly in solitary pairs. Clutch size varies from 4-6 in the province, and pairs have been raising 1
Fraser, D.F., Ramsay, L.R.. 1996. Status of the Green Heron in British Columbia. Ministry of Environment, Lands and Parks. Species Status Report. WR78
Topic: Species status
Keywords: green heron, butorides virescens, species, status, report
Scientific Name: Butorides virescens
English Name: Green Heron
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