Most Colorado State University Cooperative Extension county offices keep lists of area beekeepers willing to collect honeybee swarms. Other Bees Several kinds of bees can be found in yards. Rarely do these bees sting and cause problems to people. Bumblebees are social Insects that annually establish new colonies started by single queens. Bumblebee colonies often are underground, but occasionally the bees nest in padding material, such as a mattress, or in grass clippings.
Bumblebees are plump and covered with black and yellow hairs.
Control of bumblebees rarely is necessary and the nests are soon abandoned. Leafcutter bees and ground bees make tunnels within plant stems, rotten wood or in the ground. The young bees develop within these tunnels, where adult bees feed them pollen and nectar. These solitary bees do not form colonies but may nest together in a small area, particularly certain ground-nesting bees. These bees do not sting unless handled.