As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.
Showing posts with label little egrets. Show all posts
Showing posts with label little egrets. Show all posts

Friday, 8 February 2019

RSPB alerted following Little Egret deaths


25/01/2019
The RSPB has been alerted after the bodies of two Little Egrets were discovered last week in the River Wandle, Greater London, by two local residents. The deaths were reported to local conservationist Peter Alfrey, who informed the wildlife charity. The incident has coincided with reports of young men with catapults alongside the river, as well as an eyewitness account of a man retrieving a dead egret before hiding the body. On examination of one specimen, the otherwise pristine bird had three injuries consistent with catapult wounds.
Mr Alfrey examined the bird. He discovered a small puncture wound to the neck, a broken right tarsus and a large wound on the breast which had removed breast muscle tissue and broken the sternum. A vet later studied the body and stated that the likely reason for death was injuries caused by blunt force trauma. The police have been contacted but have said they can do nothing at this stage.
Further reports were then received regarding more dead birds in the Beddington Park area, including Grey Heron, Eurasian Coot and Green Woodpecker. Recently, a Canada Goose was taken into care from Beddington Park and a large ball bearing was removed from the bird.
Alfrey commented: "I examined one of the dead birds today – it had a broken leg, a wound on the neck and the breast. All the wounds appear to be consistent with catapult wounds, but I will need to check with RSPB Investigations. There is still one egret on the same stretch of the Wandle, though its days may be numbered if what we suspect are these attacks continue.
"A predator attack normally shows a lot more signs of struggle, with lots of missing feathers, more extensive wounds and obvious signs where the predator has eaten it, too. The bird I examined was more or less in pristine plumage. The wounds were localised on the neck and breast and in my opinion look consistent with a catapult wound. The suspicious activity and witness statements also support that."

Wednesday, 29 March 2017

Endangered ibises benefit from joining egret flocks


Date: March 22, 2017
Source: American Ornithological Society Publications Office

Birds benefit from flocking together -- even when they're not of a feather. According to a new study in The Auk: Ornithological Advances, China's endangered Crested Ibises benefit from joining forces with other, more visually-oriented bird species while searching for food.

Joining mixed-species flocks can reduce birds' risk of predation while boosting their foraging opportunities, but it can also expose them to competition and disease, and little research has been done on what this means for birds such as ibises that rely on their sense of touch to find food. Yuanxing Ye and Changqing Ding of the Beijing Forestry University and their colleagues studied the behavior of Crested Ibises foraging with and without Little Egrets in central China's Shaanxi Province, recording the birds' behavior with a digital video camera to determine whether they picked up on social cues from the other species. They found that ibises in mixed-species flocks became alert to threats sooner, suggesting they felt less at risk when mingling with the more visually-oriented egrets.



Continued