Great Blue Heron (Ardea herodias) Science Article 12 abstract Surveys were conducted at 35 Great Blue Heron (Ardea herodias) colonies in urban and rural landscapes of south-coastal British Columbia, Canada, to investigate low nesting productivity during 1998 and 1999 compared to a decade ago. Nesting failure was common (59% of 1,247 nests) and widespread (in […]
Tag: Ardea herodias
‘PRACTICE’ FORAGING BY A SUB-ADULT GREAT BLUE HERON
Great Blue Heron (Ardea herodias) Science Article 13 abstract ‘Play’, including ‘practice’ aggression and foraging, has been reported in at least 14orders of birds (Fagen 1981), and is thus a widespread, if relatively rare, behavior amongbirds. I report here on observations of practice foraging behavior (considered a categoryof play) by a sub-adult Great Blue Heron […]
REPRODUCTIVE SUCCESS OF GREAT BLUE HERONS(ARDIA HERODIAS) NESTING IN SWANSON CREEK, MARYLANDDURING THE CHALK POINT OIL SPILL
Great Blue Heron (Ardea herodias) Science Article 6 abstract On April 7, 2000, approximately 126,000 gallons of a mixture of #2 and #6 fuel oil were released froma break in a pipeline providing fuel to the Chalk Point Generating Station. The pipeline is owned by thePotomac Electric Power Company (PEPCO) and operated by Support Terminal […]
aerial plunge foraging by a Great Blue Heron
Great Blue Heron (Ardea herodias) Science Article 3 abstract This report describes the environmental contextand behavior of a single Great Blue Heron that repeatedly used plunging (Kushlan 1973a)as a foraging technique. STEVEN R . MOREY and ALLAN SMITS, Wilson Bull., 99(2), 1987, pp. 293-294 Download article download full text (pdf)
DIRECTIONS AND TIMING OF GREAT BLUE HERON FORAGING FLIGHTS FROM A CALIFORNIA COLONY:IMPLICATIONS FOR SOCIAL FACILITATION OF FOOD FINDING
Great Blue Heron (Ardea herodias) Science Article 4 abstract Patterns of foraging trips of several species of colonially nesting birdshave been examined recently for evidence that colonies serve as ‘informationcentres’ to assist the members in finding food (Krebs 1974, Hooglandand Sherman 1976, Snapp 1976, Custer and Osborn 1978, Erwin1978). According to this hypothesis colonial nesting […]
Great Blue Heron (Ardea herodias)
[order] CICONIIFORMES | [family] Ardeidae | [latin] Ardea herodias | [authority] Linnaeus, 1758 | [UK] Great Blue Heron | [FR] Grand Heron | [DE] Kanadareiher | [ES] Garza Azulada | [NL] Amerikaanse Blauwe Reiger Subspecies Monotypic species Genus Best known of the typical herons are the very large, long-legged and long-necked, plain-hued, crested members of […]