Mud Nests

bird-behavior

Birds that build nests out of mud mix soil with saliva or water to create a strong, pliable binder. These nests appear as cups, bottles, flasks, or enclosed cavities fixed to wa...

Open article

ornithology

Birds that use mud for nests rely on this abundant material to create stable, insulated cavities that protect eggs and young. By mixing soil with saliva or water, they form cups...

Open article