Great Blue Heron

The great blue heron (Ardea herodias) is a vulnerable, blue-listed species (at risk) whose population is declining in British Columbia. These birds are extremely sensitive to human disturbances.

Map

Biodiversity Interactive Map - Great Blue Heron

Range

Locally distributed throughout the Columbia Basin north to about Golden and Revelstoke.

Habitat

Nests occur commonly in riparian trees along the margins of lakes, slow-moving rivers, wetlands and sloughs. Some nests occur in upland forests.

Forages by wading in shallow waters of rivers, lakes, wetlands and also in agricultural fields.

Reproduction

  • Nests in large stick nests singly or in small to large breeding colonies
  • 3-7 eggs are incubated by both parents for 25-29 days. Both parents tend young, which leave nest in 60-90 days.
  • Bald eagles attack nesting herons and predate their young. Disturbance is a common cause of nest failure and abandonment.

Listing and Date

Listing Date
B.C. List Blue
COSEWIC
SARA

Threats to Species

  • Human disturbance
  • Environmental contaminants and pollutants
  • Harassment and predation from bald eagles
  • Loss of habitat

Select Reports

Full Report Listing (most recent on top)

For more information on this species, visit: The BC Species and Ecosystem Explorer and enter "heron" in the species Name field.

 

SPECIES

Amphibians
Columbia Spotted Frog
Long-toed Salamander
Northern Leopard Frog
Western Toad

Birds
Common Nighthawk
Great Blue Heron
Harlequin Duck
Lewis’s Woodpecker
Northern Goshawk
Sharp-tailed Grouse
Vaux’s Swift
Western Screech Owl
Yellow Warbler
Yellow-breasted Chat

Fish
Bull Trout
White Sturgeon

Flora
Common Camas
Whitebark Pine

Mammals
Badger
Big Brown Bat
Rocky Mountain Bighorn Sheep
Elk
Grizzly Bear
Selkirk Least Chipmunk
Moose
Mountain Caribou
Mountain Goat
Mule Deer
California Myotis
Fringed Myotis
Little Brown Myotis
Long-eared Myotis
Long-legged Myotis
Northern Myotis
Yuma Myotis
Silver-Haired Myotis
Townsend's Big-eared Bat
White-tailed Deer
Wolverine
Yellow-pine Chipmunk

Reptiles
Western Painted Turtle
Western Yellow-bellied Racer
Western Skink

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