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)

Friday 21 November 2014

A Bumper Year

With some submissions yet to come in the group has just passed 15,000 new birds ringed which is almost 4000 more that the average for the last five years. With ringing effort being roughly the same this suggests excellent productivity for both residents and migrants. The table below compares the 2014 catch with the five year average for species ringed regularly in good numbers.

Species                   5 Year Average        2014 catch
Chiffchaff                      185                       462
Willow Warbler             434                       585
Whitethroat                    116                       257
Lesser Whitethroat          46                         71
Blackcap                        109                       300
Reed Warbler               1010                     1300
Sedge Warbler               416                       410
Goldcrest                       129                       211
Robin                             132                      326
Grey Wagtail                   49                      162
Wren                              134                      258
Reed Bunting                196                       364

Of these 13 species only Sedge Warbler has not shown any increase. The fact that both migrants and residents have increased suggests excellent productivity and survival no doubt due to the good warm weather especially later in the breeding season. In the case of residents last winters mild weather also helped.
John
       

3 comments:

Pete Marsh said...

I would add Dunnock to this theme

Pete Marsh said...

I would add Dunnock to this theme

Pete Marsh said...

I would add Dunnock to this theme