The Lincolnshire Bird Club http://lbcarchive.co.uk/forum/ |
|
Willow Tits definitely in decline?? http://lbcarchive.co.uk/forum/viewtopic.php?f=2&t=18334 |
Page 1 of 1 |
Author: | Stuart Britton [ Tue Jan 08, 2013 9:09 pm ] |
Post subject: | Willow Tits definitely in decline?? |
Whilst checking the Mid-Lincs RG totals for 2012 I found that only 3 Willow Tits had been ringed at traditional sites in the Market Rasen/Newball/Donington on Bain areas. This compares with 15 in 2009 and 12 in 2010 and 2011. I went through past records going back to 1974 to find that 350 had been ringed between 1974-1994 and only 150 from 1994-2012. The amount of ringing effort has been reasonably constant over this period. There are too many variables to make these observations statistically significant but I think it adds weight to the increasingly worrying lack of sightings of Parus montanus. |
Author: | John Walker [ Wed Jan 09, 2013 9:09 am ] |
Post subject: | Re: Willow Tits definitely in decline?? |
I don,t recall a single record of montanus over the past 15 or so years on Saltfleetby nnr they were a regular sight in the seventies and eighties. regards John |
Page 1 of 1 | All times are UTC [ DST ] |
Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |