A worker and a queen Buff-tailed Bumblebee (Bombus terrestris) on a Sedum spectable flower head. The queen is the larger bee and the size difference Stock Photo - Alamy
Year of Pollination: Bumblebees and Climate Change | awkward botany
Buff-tailed bumblebee | Blooms for Bees
Ruderal Bumblebee | Blooms for Bees
Unexpected queen bumblebee discovery could help us save multiple colonies
Northern White-tailed Bumblebee | Blooms for Bees
Humble Bumblebee's - Inner Hebrides Blog - Inner Hebrides - The RSPB Community
Queen bumblebees take long breaks in the grass after hibernating