Western Reef Heron (Egretta gularis) Science Article 3 abstract The presence of a Western Reef-Heron in Kittery, Maine for six days in August 2006presented an opportunity to perform a case study of the economic boost that birding canbring to a small community. Jeannette and Derek Lovitch, The Wild Bird Center of Yarmouth Download article download […]
Striking of underwater prey by a reef heron, Egretta gularis schistacea
Western Reef Heron (Egretta gularis) Science Article 1 abstract The ability of a piscivorous bird, the western reef heron, Egretta gularis schistacea, tocope with light refraction at the air/water interface was investigated. Gadi Katzir and Nathan Intra, J Comp Physiol A (1987) 160:517-523 Download article download full text (pdf)
First confirmed record of Western Reef-Heron (Egretta gularis) for South America
Western Reef Heron (Egretta gularis) Science Article 4 abstract At 3 P.M. ON WEDNESDAY, January 22, 1986, a group of 15 people on a birding tour of Trinidad observed a medium-sized, dark heron land and begin feeding in the ‘Pumpkin Patch’ area of southern Nariva Swamp. William L. Murphy and Winston Nanan, Am. Birds 41(1):16-27 […]
Western Reef-Heron Egretta gularis in Brazil (Ciconiiformes: Ardeidae)
Western Reef Heron (Egretta gularis) Science Article 5 abstract The Western Reef-Heron Egretta gularis is a polytypic species with discontinuous tropical range along West (nominate subspecies) and East Africa to the Red Sea, Persian Gulf and southwest India (E. g. schistacea). In West Africa, it breeds locally on coasts and offshore islands, from Mauritania Carmem […]
Stationary underwater prey missed by reef herons, Egretta gularis: head position and light refraction at the moment of strike
Western Reef Heron (Egretta gularis) Science Article 2 abstract This paper attempts to verify the importance of spatial positioning of the eyes of reef herons Egretta gularis schistacea, when coping with light refraction at the air-water interface. Gadi Katzir et al, J Comp Physiol A (1989) 165:573-576 Download article download full text (pdf)
Orphean Warbler, species report Spain
Western Orphean Warbler (Sylvia hortensis) Science Article 1 abstract Orphean Warbler, species report Spain Javier Blasco-Zumeta, Laboratorio Virtual Ibercaja Download article download full text (pdf)
The effect of predation by Marsh Harriers Circus aeruginosus on the survival of ducklings and game bird chicks.
Western Marsh Harrier (Circus aeruginosus) Science Article 4 abstract The level of predation by a pair of Marsh Harriers Circus aeruginosus on ducklings and gamebird chicks was calculated from observations of hunting ranges, feeding rates and diet, and estimates of the availability of prey during the breeding season. The harriers took 22% of the Pheasant […]
Nest-site selection by Marsh Harrier (Circus aeruginosus) in the shore belt of Helophytes on large lakes
Western Marsh Harrier (Circus aeruginosus) Science Article 2 abstract Nest-site selection by Marsh Harrier (Circus aeruginosus) was investigated on Lakes Meteliaiand Obelija in 1983n1986 and Lake fialtytis in 1984n1986 in southern Lithuania. Fifty five breedingpairs were detected and 49 nests (89.1%) were found. With regard to the potential breeding habitat,Lakes Meteliai and fialtytis represented extreme […]
Changes in the frequency of prospecting fly-overs by Marsh Harriers Circus aeruginosus in relation to short-term fluctuations in dabbling duck abundance
Western Marsh Harrier (Circus aeruginosus) Science Article 7 abstract Wintering waterfowl gathering in large flocks during the day may be attractive to avian predators in a way similar to that of bird colonies. The response of Marsh Harriers to changes in dabbling duck abundance was monitored on four freshwater sites in the marshes of western […]
Factors influencing nest material selection in Marsh Harrier (Circus aeruginosus)
Western Marsh Harrier (Circus aeruginosus) Science Article 3 abstract Marsh Harrier used at least 30 plant species from natural and cultural landscapes andhabitats for nest building on Lakes Meteliai, Obelija and fialtytis (southern Lithuania). Helophytesdominated among plant species, particularly reeds, though the share of terrestrial plants (especially ofrobust agrolandscape plants) sometimes was very significant. The […]