With spring well advanced, and the days are sometimes getting warmer. The Mason bees should be starting to get lively.
In checking the cocoons, that were supplied in a ‘smartie’ type tube with a small hole in the lid. One of the cocoons can be seen to have been hatched, with others probably on the way.
Small cocoons denotes males, whereas larger cocoons indicate females.
I will be rechecking how many have hatched over the coming weeks.
It has been confirmed via George Pilkington at http://nurturing-nature.co.uk/ that these bees in the photographs are male red mason bees. Thanks George.