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Bluebirds sometimes build more than one nest, as a diversion to predators.
The doctor bird uses silk from the spider web to build their nest.
rocks
Which abiotic component of its ecosystem did the owl in the picture above use to build a safe nest?
Osprey build a fairly large nest of sticks in the top of a dead tree or on a man-made nesting platform.Usually they will pick a very high place near a body of water, and use sticks and branches and long grasses to build it out of.
mud and saliva
No they build a new nest for each brood. However they may use the same nest site year after year.
No. They make a new one for each brood but if you take out the old nest after the young have left the nest they may make a new in that birdhouse.
Yes, they use mud,rocks,twigs to form a tall,circular mud best to lay usually one egg.
No. They build a new nest each year because of safety, health, and instinct reasons.
They pick anything they can find which is suitable.
Weaver birds use a variety of plant materials to build their nests, including strips of grass, leaves, twigs and roots.