Tag Archive: all of Egretta

Dec 31 2011

The Little Blue Heron in California

Little Blue Heron

Little Blue Heron (Egretta caerulea) Science Article 4 abstract On 4 July 1976 William T. Everett, Curtis Stuteville and I discovered an adult Little Blue Heron (Egretta caerulea) near the mouth of the New River at the south end of the Salton Sea, Imperial County. This bird was perching in an area of drowned trees …

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Dec 31 2011

Aplomado Falcon Steals Prey From Little Blue Heron

Little Blue Heron white morph

Little Blue Heron (Egretta caerulea) Science Article 2 abstract A juvenile male Aplomado Falcon (Falcofemoralis) was observed to steal crayfish(Cambarus diogenes) from Little Blue Herons (Egretta caerulea). Crayfish are not known tobe a common prey item of the Aplomado Falcon. To our knowledge this is the first instanceof piracy reported for this falcon. Falcons of …

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Dec 31 2011

Predation as a selective force on foraging herons: effects of plumage color and flocking

Little Blue Heron (Egretta caerulea) Science Article 6 abstract Experiments using model herons in natural mangrove habitats demonstrated that more hawks are attracted to white than to blue herons. Both Common Black-Hawks (Buteogalluas nthracinus) and crocodiles (Crocodylus acutus) were observed preying on adult herons in Panama. Solitary herons were at greater risk than flocked foragers. …

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Dec 31 2011

Notes on the plumages and generic status of the Little Blue Heron

Little Blue Heron juveniles

Little Blue Heron (Egretta caerulea) Science Article 3 abstract The juvenal plumage of the Little Blue Heron (Florida caerulea) has always been described as white with dull brownish gray tips to the primaries (Palmer, 1962: 428, and earlier authors). In September 1962, when Dickermanw as collectingb lood specimensfr om nestling h rons in a large …

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Dec 31 2011

Influence of plumage colour on prey response:does habitat alter heron crypsis to prey?

Little Blue Heron (Egretta caerulea) Science Article 5 abstract The foraging strategies of wading birds may be influenced by their degree of crypsis to aquatic prey. Whiteplumage has been hypothesized to be adaptive for herons hunting in open water habitats. We tested thishypothesis with laboratory and field experiments with multiple prey species.We investigated the responseof …

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Dec 31 2011

Breeding biology of the little blue Heron (Egretta caerulea) in southeastern Brazil.

Little Blue Heron (Egretta caerulea) Science Article 1 abstract The breeding biology of Little Blue Herons (Egretta caerulea) nesting in Santos-Cubatao, southeastern Brazil, was studied during the 1997 (75 monitored nests) and 1998 (65 nests) breeding seasons in one colony (Saboo River), and during the 1997 season (58 nests) in another colony nearby (Morrao River). …

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Dec 27 2011

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 …

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Dec 27 2011

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)

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Dec 27 2011

The Economic Impact of the Western Reef-Heron (Egretta gularis) on the Town ofKittery, Maine in August of 2006.

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 …

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Dec 27 2011

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)

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