Bee

Bee

Observation - Bee - UK and Ireland. Description: There are a great many of these bees and they are non-aggressive. They are just over 1cm in length. Seen gathering around - and then flying into - 4 separate chimney pots. The pots are not close together - about 20-30 meters apart. They are repeatedly

There are a great many of these bees and they are non-aggressive. They are just over 1cm in length.
Seen gathering around - and then flying into - 4 separate chimney pots. The pots are not close together - about 20-30 meters apart. They are repeatedly entering the front rooms of each house and have been doing this for 3 days now. A lit fire will keep them out temporarily, but not deter them altogether. Can anyone identify them and also offer an explanation as to their behaviour?