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)

Saturday, 4 June 2011

Permutations - see update 12th June

Box 51 in upper Hindburndale seemed to have ended its 2011 season rather sadly with a clutch of dead Pied Flycatcher young which had "seemed only to be being fed by the male", backed up by the growth being much slower than the nearby Box 56 PFs. Their deaths seemed to be a case of female predation and the male not being able to the weather didnt help. Indeed I had phoned Mark Breaks earlier this evening to say that the female was probably dead (ringed as a nestling in 2009 at Marks home at New Laithe Farm, Newton in Bowland, nested in 2010 in Sykes, Slaidburn before moving further north in 2011)

The nest and contents were removed. Following reports of late PF nests and knowing that two seemingly unmated males were holding territory nearby, I checked all the empties this evening.

All remained empty except Box 51 which contained a new PF nest with two eggs

Is this the original pair re-laying, the original male (which was ringed on the left leg) with a new female, one of the nearby unmated birds pairing with a late migrant female or some other convolution. Examination of the female if/when the clutch of 7 is reached will help solve this as will views of the male to see if it is or isnt ringed on the left leg

Haven't had a decent view of the male to see if it is the left-leg-ringed original, but can confirm that the female is an unringed 2CY - ringed today (12th June) sitting on a small apparently full clutch of 5 eggs

Keep checking you 'empty' boxes!


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