From the BTO Bird Ringing ‘Demog Blog’ in Britain:
10 July 2014
Hawfinch longevity on the up
The longevity record for a British ringed Hawfinch has stood for many decades at 6 years, 9 months and 4 days: not surprising really as so few had been ringed, and even fewer recaught or found.
BTO ringer Jerry Lewis spends most of April each year catching (and more importantly recatching) and colour-ringing birds at feeding sites in the Forest of Dean. In 2012, he caught three birds that he had previously been ringed six years earlier, and began to think that a new longevity record was perhaps in sight. He didn’t have to wait long, as soon after this he caught another two birds that had been ringed in 2005: NW21506 was the older of the two, at 6 years, 11 months and 24 days. Fast forward to 2013 and another two seven-year-olds were recorded, but photographed this time allowing their colour rings to be read. This gave an impressive selection of old birds, and a better indication of the actual age that Hawfinch can regularly reach.
However, in April this year, local birder Phil Mugridge photographed a bird with a red colour ring over a metal right on its left leg, a combination only used on 17 birds ringed in April 2006, so an even older bird at eight years.
LBR,M in April 2014
The next few years are likely to see further captures and sightings of birds originally ringed in 2005, 2006 or 2007, so no doubt the longevity record will continue to be pushed even higher.