House sparrows and wrens often compete with bluebirds for the same nesting house. Often time sparrows will break bluebird eggs or make another nest over the current bluebird nest.
No. They build a new nest each year because of safety, health, and instinct reasons.
I have two house wrens who sleep on a ledge under our deck every night. They turn their faces to the wall & their little tails hang over the edge. Very cute. I've seen pictures of other wrens doing the same. I've also read about them finding warmer places to snuggle like the pockets of clothes that are hanging outside, haystacks, etc.
you have to get them to strike midnight at the same time twice
Regularly check your houses wall insulation, make sure they are all the same temperature as house martins like to nest on warmer points.
Yes, some species of wasps do return to the same nest.
No, Song Wrens are monogamous birds, and only the female of the mating pair will lay eggs in the nest. However, both parents will typically help incubate the eggs and care for the chicks once they hatch.
House sparrows have a few natural enemies, including cats, birds of prey such as hawks and owls, and some snakes. However, their main threats are often human activities like habitat destruction, pollution, and predation by domestic pets.
No they build a new nest for each brood. However they may use the same nest site year after year.
Yes, some species of wasps do return to the same nest year after year.
No... shell have a nother nest to have when she has a next litter. Because she would want her bunnies that are born to have that nest.
It means nothing other than the bird found a nice place for a nest. Some birds return to the same nest/area year after year. It could mean that your house is in a paticaly safe area like high up not many preditors