Rookery Survey 2009

There seems to be some difficulty in identifying 'active' nests and this might help?
Peoples Park colony - 12 nests there over the last 2 weeks with 2 appearing 'empty' however this evening I checked about an hour before dusk and all nests had birds sitting around them so presumably the occupants had returned to roost at the nest site.
Not always practical to visit before dusk - and there aren't always calm evenings!
Lets hope too that the strong winds recently ease up a bit to give the birds a chance to breed succesfully this spring.