Category: Ardeidae

Natural Infection of a Great Egret (Casmerodius albus) with Eastern Equine Encephalitis Virus

Great Egret (Casmerodius albus) Science Article 1 abstract In July 2001, a great egret (Casmerodius albus) was found dead in CharltonCounty, Georgia (USA) and submitted to the Southeastern Cooperative Wildlife Disease Study Nicole L. Gottdenker et al, Journal of Wildlife Diseases, 39(3), 2003, pp. 702-706 Download article download full text (pdf)

Water depth selection during foraging and efficiency in prey captureby the egrets Casmerodius albus and Egretta thula (Aves, Ardeidae)in an urban lagoon in Rio de Janeiro State, Brazil

Great Egret (Casmerodius albus) Science Article 2 abstract This study aimed to evaluate the water depth selection during foraging, the efficiency in prey capture, and the food items captured by Casmerodius albus (Linnaeus, 1758) and Egretta thula (Molina, 1782). The work was conducted at an urban lagoon, Lagoa Rodrigo de Freitas, Rio de Janeiro Aline […]

Behaviours influencing the distribution of great blue herons (ardea herodias fannini) in the strait of Georgia, British Columbia

Great Blue Heron (Ardea herodias) Science Article 14 abstract The Great Blue Heron (Ardea herodias fannini), a nonmigratory subspecies endemic to the Pacific Northwest of North America, is COSEWIC-listed in Canada as a species of ‘special concern’. The Breeding Bird Survey (BBS), conducted since 1969, indicate an ongoing decline in numbers. Recent findings show that […]

Age differences in Cattle Egrets Bubulcus ibis foraging with wild ungulates in Kenya

Cattle Egret (Bubulcus ibis) Science Article 10 abstract The foraging behavior of adult and juvenile Cattle Egrets was studied at Nairobi Park, Kenya. Egrets fed on insects scared up by foraging Buffalo, Zebra, Wildebeest and Hartebeest. Adults attempted to capture more items, capture more items, and had higher capture success rates than juveniles, although the […]

Promiscuity in the cattle egret (bubulcus ibis)

Cattle Egret (Bubulcus ibis) Science Article 3 abstract Among 19 pairs of individually marked Cattle Egrets( Bubulcus ibis)c a. 3 in 10 successful copulations were extrapair. Extrapair copulations potentially increased the reproductive successof five of the males by 18.6% on average. An anticuckoldry strategy was evident in the male’s constant attendance at or near his […]

Extramarital and pair copulations in the Cattle Egret

Cattle Egret (Bubulcus ibis) Science Article 1 abstract The copulatory behavior of the Cattle Egret (Bubulcus ibis) was observed in a heronry in central Japan. In 38 of 147 extramarital copulation (EC) attempts with seven females, the males seemed to succeed in ejaculation. There were relatively few complete ECs prior to egg laying, because females […]

Cattle egrets bubulcus ibis at sea in the south atlantic ocean

Cattle Egret (Bubulcus ibis) Science Article 2 abstract While aboard the icebreaker Almirante Irizar, 12 Cattle EgretsBubulcus ibis were observed in the South Atlantic Ocean. Twowere seen on 8 March 1995 at 58 deg 31’S, 52 deg 11’W flying northwestabout 160 miles from the Argentine coast. On 12 March1995, a flock of nine individuals were […]

Role of sibling aggression in food distribution to nestling cattle egrets (bubulcus ibis)

Cattle Egret (Bubulcus ibis) Science Article 9 abstract Sibling aggression occurs in a wide variety of asynchronously hatching bird species. In some, fights among siblings lead inevitably to death, in which case the benefits of winning are clear. In species where sibling aggression is common but usually not fatal,the benefits gained by winning and the […]

Predation on the Cattle Egret (Bubulcus ibis) and consumption of theCampo Flicker (Colaptes campestris) by the Aplomado Falcon (Falcofemoralis) in Brazil

Cattle Egret (Bubulcus ibis) Science Article 8 abstract The Aplomado Falcon (Falco femoralis) has a wide distribution ranging from south-east USA to Tierra del Fuego (Ferguson- Lees and Christie 2001). This small raptor (208 – 460 g) inhabits mostly non-forested habitats, such as savannah grassland, scrub steppe, cactus desert, marshland with scattered trees, and sometimes […]