NLRG was formed in 1957 to help in the study of birds in the Lancaster and District Birdwatching Society area. There are currently 12 active ringers. Species currently being studied include: Pied Flycatcher, Bearded Tit, Sand Martin, Twite, Goosander, Oystercatcher and Grey Wagtail. Migration has been studied for 28 years at Heysham. We welcome anyone who wants to observe, help or perhaps wish to become a ringer. Photo: A Heysham-ringed Twite on the Mull of Kintyre (thanks to Eddie Maguire)

Wednesday, 20 June 2018

Pied Flycatcher RAS Interim Report

Now got the data for about half our RAS study of Pied Flycatchers in the Lune valley woodlands.So far it has been a good season although there has been three reports of nest box predation by either weasels or stoats.

So far in total we have ringed or retrapped 369 birds  made up of 33 males, 60 females and  286 nestlings. The later have survived well in the excellent June weather, the number of caterpillars on the Oak especially appears to be high, and the numbers of insects especially midges is amazing!

A quick analysis of the retrap data shows that although 13 of the birds ringed as nestlings in previous years and retrapped breeding this year returned to their native wood, but 27 moved to other woods within the Lune valley. But  of adult birds 13 returned to the wood they breed in last year and only  two changed woods. There were several examples of birds returning to the same box to breed.

Our oldest bird  is in its seventh year and was originally ringed as an adult. This female bred in the same wood for three years,was missed the next year, then moved 4 km to another wood and this year moved 3km. We have two others in their fifth year.

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