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)

Sunday, 4 September 2011

Reed Warblers Have a Good but late Season

With ca 95% of the Leighton Moss reed-bed trashed by roosting starlings last winter, we were rather concerned that Reed Warblers might have a poor season. They arrived in late April to find almost all the reed bed under a metre high and our impression was that the few good reed areas were colonised first.

However this has turned out to be a good season . To date we have caught 246 adult birds and 806 juveniles making it the best year since 2003. However breeding does seem to have been later than usual. By the second half of August almost all the adults have usually left. Over the past 11 years we have averaged just seven adult birds in the second half of August but this year we have caught 23. A few were fattening up ready for the off but a female(ringed as a juvenile in 2010) we caught this morning( September 4th) was typical, it still had a marked brood patch.- no fat and weighed 10.3 grams. We are also catching a number of young birds still in post juvenile moult.

Did the poor condition of the reed delay the start of the breeding season so making second broods later than usual.?


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