38 birds processed, 5 new (Great Tit 4; Blue Tit 1); 33 local retraps.
Roudsea Woods and Mosses National Nature ReserveThe diagonal scar running through the wood is a line of power cables
Emily extracts a BlueTit
Josh processes R295207, a colour-ringed Marsh Tit from the very first cohort, ringed on 23 December 2002 (7 years almost to the day) and is the oldest known bird in the wood!
3 comments:
Is the bird Josh is holding the one we saw the other day?
Yes, it was!
Nice one, Jim. Our oldest marti in Monks Wood got to 8 yrs to the month (we still have a pair that will both be 7 next May if they make it through the winter, and a couple that are 6+), and one at my new stomping ground in Oxfordshire made it to 9yrs. Plenty in Monks Wood get to 5+.
Monks Wood adult survival rates seem a little lower than yours, but basically similar at 0.41-0.70 (mean of 0.52 over the same years as yours)
Richard
Post a Comment