Breeding adults have ornate plumes on their heads, necks and backs
Males are generally larger than females and have longer bills
Non-breeding adults and juveniles do not have plumes
Juveniles have a distinctly larger black crown on their heads
Heron Facts
Adult herons usually return to nest in the same colony they were born in, others are attracted from nearby heronries to help ensure genetic diversity
Nests can be a meter in diameter and half a meter thick, made of a large collection of twigs and sticks with a centre cavity lined with moss and lichen
Herons can live to 15-20 years of age and they are capable of breeding in their second year
Great blue herons have been designated as a "species at risk" by the B.C. Government
The herons have nested in their current location for
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12
years. Prior to that they nested near Brockton Point (approx. 1921-1960s) and the Stanley Park Zoo (approx. 1960s-1999).