Dec 31 2011
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 …
Dec 31 2011
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 …
Dec 31 2011
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 …
Dec 31 2011
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 …
Dec 31 2011
Cattle Egret (Bubulcus ibis) Science Article 6 abstract The first record of the Cattle Egret in Surinam on March 10, 1946 (Auk, 64: 143, 1947) proved of more importance than the mere observation of a straggler. In the same district I observed on December 12, 1946, two individuals on the bank of the Nickerie River. …
Dec 31 2011
Cattle Egret (Bubulcus ibis) Science Article 5 abstract Cattle Egret Bubulcus ibis has a worldwide distribution. In India it is common in a variety of habitats, especially wetlands, throughout the peninsula. Freshwater marshes and paddy fields were identified as the most important foraging habitats by Meyerricks (1962) and Seedikkoya (2004), although there are pronounced seasonal …
Dec 31 2011
Cattle Egret (Bubulcus ibis) Science Article 4 abstract Naturally occurring secondary nutritional hyperparathyroidism is described in the nestlings of two colonies of cattle egrets (Bubulcus ibis) from Central Texas (Bryan and San Antonio, Texas, USA). Nestlings from a third colony (Waco, Texas, USA) were collected in a subsequent year for comparison. Birds from the first …
Dec 31 2011
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 …
Dec 31 2011
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 …
Dec 31 2011
Cattle Egret (Bubulcus ibis) Science Article 7 abstract The breeding success of the Cattle Egret ( Bubulcus ibis ) and Little Egret ( Egretta garzetta ) was studied in relation to nest site selection. Average nest abundance for the Cattle Egret was 0.045
Bird news© 2013 Planet of Birds.