Bees nesting in garden

Bees nesting in garden

Observation - Bees nesting in garden - UK and Ireland. Description: Bees have started nesting in a bin bag full of leaf mould in my garden in Lancaster. I wonder what kind of bees they are. They fly in and out of the hole pictured all day. They are quite big, about 1.5-2 cm long. The thorax is covered in gingery hairs and

Bees have started nesting in a bin bag full of leaf mould in my garden in Lancaster. I wonder what kind of bees they are. They fly in and out of the hole pictured all day. They are quite big, about 1.5-2 cm long. The thorax is covered in gingery hairs and the last bit of the abdomen is white. In between is black or dark brown. As you can see in the photo, they arrive back at the nest with food, presumably pollen.