house martins
Mud nest builders
House martins are small migratory birds with glossy blue-black upper parts and white undersides, named for their habit of building mud nests under the eaves of houses and other buildings.
Common across Europe and parts of Asia, they arrive in spring and depart in autumn, their return traditionally marking the season's change.
- swallowSend down the throat
- feathersBird's lightweight covering
- birdFeathered flying vertebrate
- skyVisible overhead expanse
- eavesProjecting roof edges
nesting · clutch · flight · mud · avian · migratory · eggs · colony · passerine · forked tail · springtime · white · nesting site · breeding pair · swift · hatchlings · tail · blue
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