Discover published sets by community

No nest construction; lays eggs on cliff ledges or scrapes

Ground nests in a shallow scrape, camouflaged with surrounding debris

Intricate woven nests usually hanging from trees

Mud mound nests built in shallow water

Compact cup-shaped nests in the forks of tree branches

Nests in tree cavities or nest boxes

Tree cavity nests, often in proximity to water

Stick nests in the crotch of large trees, often high above the ground

Saucer-shaped nests constructed with twigs glued to the insides of chimneys or hollow trees using saliva

Large stick nests in tall trees or cliff edges

Cavity or ledge nests in cliffs, no nest material used

Burrow nests in sandy riverbanks or cliffs

Tiny cup-shaped nests on tree branches using spider webs and plant material

Mud pellet nests attached to eaves or inside structures

Large stick nests on top of poles, platforms, or trees

Untidy nests in cavities or structures, often made with urban materials

Simple scrape on ground, usually on a raised mound in open tundra

Mud reinforced nests in trees or on buildings

Nests in cavities in trees or buildings, with a preference for man-made structures

No fixed nest; eggs are incubated on the parents' feet under a brood pouch

Nests in tree cavities or on cliff ledges, often using old nests of other large birds

Burrow nests in cliff tops or islands, digging with their beaks and feet

Large compound community nests on trees and poles, made of grass and straw

Pendulous woven nests in colonies, often from high points on tall trees