An abandoned egg, kicked out of the nest-cup. You can see a temperature logger (an 'i-button') in the centre of the photo for recording nest temperature to monitor egg neglect.
Friday, 15 July 2011
Laying down the foundations
Almost 70% of monitored nests are now occupied by a breeding pair. In 17 nests, the egg is being incubated in a nest-cup holding a temperature logger, so hopefully some valuable data on frequency of occurrence of egg neglect (breaks in incubation) are being recorded. One of these eggs has, however, been abandoned already and kicked out of the nest (see below). Another 10 nests have been occupied on a handful of occasions over the season, so there may be a few more pairs yet to lay an egg. It may seem late, but, last year, the last egg was recorded on 2nd August.