![](http://i110.photobucket.com/albums/n114/corsiphoto/photos-part2/1-1.jpg?t=1210721600)
The great tits are laying eggs now about two weeks earlier in the year than they were 47 years ago.
The timing is crucial, because for the two-week period after they hatch, the chicks have to gobble down huge quantities of winter moth caterpillars which only emerge for a short period.
via Presurfer
0 comments:
Post a Comment