Jackdaws


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Jackdaws

 

birds of the family Corvidae of the order Passeriformes. There are two closely related species: the common jackdaw (Corvus monedula) and the Daurian jackdaw (C. daurica).The body is 22-23 cm long and weighs 150-200g. The plumage is soft. The dorsal side is black with a metallic shine. In the common jackdaw the ventral side is grayish black, and in the Daurian jackdaw it is white or black. There is a white semicollar on the neck. The common jackdaw is found in Europe, Asia (excluding the extreme northern parts), and northeastern Africa, and in the eastern USSR as far as central Siberia. The Daurian jackdaw inhabits southern Siberia east of the Enisei, Mongolia, and China. Jackdaws are migratory and occasionally permanently settled birds. They are monogamous and nest in colonies in hollows of trees, rock clefts, and burrows in cliffs and on buildings. There is one clutch per year in April-May, consisting of three to six blue green eggs with dark speckles. Incubation lasts 16 days. After nesting, jackdaws stay in flocks and migrate. They feed on animals and plants and can be useful by eating insects.

References in periodicals archive ?
There are sometimes 80-100 large birds, mainly pigeons and the noise of the jackdaws is horrendous," said Linda Jones, antisocial behaviour officer with Conwy County Borough Council.
JONJO O'Neill admits he has no idea what Tony McCoy will do next, although he insists the rider will always be welcome at his Jackdaws Castle yard.
Jonjo O'Neill has rather more grandiose ambitions this week as he readies Shutthefrontdoor for the main event, but the Jackdaws Castle handler can be trusted to have this one on top of his form.
FOR the more than 35 years I have lived in the middle of West Bromwich and during that time jackdaws have nested and roosted in my neighbours' disused chimneys.
JACKDAWS nesting in the chimneys of a historic Northumberland hall left staff feeling distinctly jumpy.
Off for 18 months before making his debut for the Jackdaws Castle trainer in October, Burton Port ran the best race since his absence when second at Newbury in first-time cheekpieces last month.
In a separate study, published in the journal Animal Cognition, the team investigated the ability of carrion crows to differentiate between the voices and calls of familiar and unfamiliar humans and jackdaws, or 'heterospecific individuals' ie.
Other lots include a private tour of the Queen's Stud at Sandringham and visits to Ballydoyle, Jackdaws Castle, Aintree, Goodwood and York.
In cities crows live alongside jackdaws, magpies and seagulls, and alongside humans," Dr Wascher told BBC Nature.
Veteran cyclist Mick, who is five times World Masters cycling champion and alltime record 73 times British cycling champion, will set off from racehorse trainer Jonjo O'Neill's base, Jackdaws Castle, near Cheltenham at 8am on Tuesday May 24.
AN ICY easterly wind blowing over the rolling gallops of Jackdaws Castle did little to banish the smile from Jonjo O'Neill as he welcomed home his 2010 John Smith's Grand National winner Don't Push It.
The five-year-old, owned by JP McManus, joined the Jackdaws Castle trainer from Niall Madden's Irish stable in the autumn.