000	02098nam  2200301za 4500
001	9.611945
003	CaOODSP
005	20240527135427
007	ta
008	150406|1994||||xxc|||||     f|0| 0 eng d
020	|a0-662-23144-9
022	|a0576-6370
040	|aCaOODSP|beng
043	|an-cn---
086	1 |aCW69-1/86E
110	2 |aCanadian Wildlife Service.
245	14|aThe patient predator : |bforaging and population ecology of the Great Blue Heron Ardea herodias in British Columbia / |cby Robert W. Butler.
260	|aOttawa - Ontario : |bEnvironment Canada. |c1994.
300	|a44p. : |bgraphs, maps, references, tables ; |c28 cm.
490	1 |aOccasional paper - Canadian Wildlife Service|x0576-6370|v86
500	|a"This report presents the results of a six-year study (1986-91, including five breeding seasons and four winters) of the diet, food availability, foraging behaviour, use of habitats by age-classes and sex-classes, spacing of breeding colonies, and survival of the Great Blue Heron Ardea herodias on the Pacific coast of British Columbia. The general thesis of this study is that the availability of food energy largely dictates when herons use foraging habitats, the time of year that they breed, and which individuals survive."--Abstract.
520	3 |aThis report presents the results of a six-year study (1986-91, including five breeding seasons and four winters) of the diet, food availability, foraging behaviour, use of habitats by age-classes and sex-classes, spacing of breeding colonies, and survival of the Great Blue Heron Ardea herodias on the Pacific coast of British Columbia. The general thesis of this study is that the availability of food energy largely dictates when herons use foraging habitats, the time of year that they breed, and which individuals survive.--Abstract
546	|aRésumés en français
563	|aSoftcover
690	07|aBirds|2gcpds
720	1 |aButler, Robert W.
776	0#|tThe patient predator |w(CaOODSP)9.856111
830	#0|aOccasional paper (Canadian Wildlife Service)|x0576-6370|v86|w(CaOODSP)9.514489