Friend's Email: Subject:I have found a book that I think you would enjoy
Breeding distribution and population trends of the Great Blue Heron in Quebec, 1977-2001 .
Breeding distribution and population trends of the Great Blue Heron in Quebec 1977-2001 Author:Jean-Luc DesGranges Regular surveys of Great Blue Heron Ardea herodias colonies in Quebec, conducted between 1977 and 2001, resulted in the discovery of 705 colonies, mostly in the western part of the province. While single breeding pairs were occasionally found (9% of Quebec "heronries"), the colonies were generally composed of fewer than 16 breeding pairs, with s... more »ometimes over 50 (18 known colonies), as was the case on several islands in the St. Lawrence River. Close to one-third (1919 of the 6481 active nests) of the Quebec Great Blue Heron population was associated with heronries in the St. Lawrence system.« less