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, 27 April 2011

Hindburndale nestboxes

Big difference between the upper and lower valleys. Haw Wood revealed 11/11 boxes occupied with 9 of these being tits, including a full clutches of 12 + 9 being incubated with the rest containing 3, 4, 7, 8, 8, with 2 incomplete nests. Pied Flys comprised one completed nest and one just started

At the other end of the valley, a set of newly-erected boxes alongside Mill Stream by the northern fringe of Thrushgill clearfell comprised: one presumed inexperienced tit spp with 3 eggs in a barely completed nest, another tit with just one egg, a very rapidly completed Pied Flycatcher nest with noisy male in attendance, two nests presumed to be completed Redstart and another 3 containing bits and bobs of material, hardly deserving the term "nest", which suggested Redstart or Pied Fly. Are Redstarts always elusive during pre/early egg-laying stage - no birds anywhere near the completed nests? 6 boxes were completely empty

Not sure about the ones in between the lower and upper extremes as I am not involved in the monitoring, but at least 5 Pied Fly nests reportedly involved

By no means certain all the females are in yet for either Pied Fly or Redstart as, despite an early mass arrival e.g. 9th-10th April, the recent weather has really blocked stuff - e.g. Swallow numbers are still very low.

1 comment:

North Lancs Ringing Group said...

Hi Pete,
if you have 11/11 boxes occupied, would it would be useful to have more boxes so as to avoid nest-site competition? If you had any more, its not too late to get them up as birds will keep on arriving into mid-May