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Swifts

Posted by Jean Roberts 
Swifts
August 03, 2017 08:14PM
28 Swifts having a good old scream over Hornby this evening.
Re: Swifts
August 03, 2017 09:17PM
25 Swift screaming in a tight flock over Glasson Dock at 8.30 pm.

Loose gathering of c.100 Swift over Leighton Moss mid afternoon yesterday.

Pete C
Re: Swifts
August 06, 2017 10:59PM
In spite of the dreadful weather over the last 3 weeks, evening displays of swifts have been excellent in the Freehold, Lancaster area. Most nights since early July, between 7.30 - 9.15 pm (dependng upon light intensity, the determining factor) bird counts have been between 28 and 53 individuals. Even in this evening's rain, we had 33 at 8pm, screaming and wing shaking as they took on water in their plumage.

Information from Oxford implies an early departure there, but the weather in the UK has been very polarised this year. South of a line from Mid Wales to Norfolk and East of Bristol has been significantly drier and warmer. Most nests have fledged and many birds have already departed. North of this line it has been much wetter and cooler for 3 weeks and there will be more delayed nesting success. Each evening now it is worth popping out towards dusk if you have a colony overhead. The fledglings and non breeding juveniles will depart very soon leaving only feeding adults and unfledged young. The decline should start about the 10th to the 15th August. Some late and loyal nesting birds may remain after that. In the meantime it is still worth following the non breeding population as it screams at dusk, then chases the leader higher and higher into the sky until they are only audible. The same birds return each day and repeat the process until departure.
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