London Great/Blue tits & Robin 2021 Mar 13, 2021 12:30:24 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by petesbox on Mar 13, 2021 12:30:24 GMT It does does'nt it, i forgot The GT females spend long periods of time away from the nest when its near complete i'm guessing probably feeding themselves up with food and calcium before the egg laying.