7/2/2023 0 Comments House wren eggs37 No.1, p.17) has had some success by following this practice for dummy nests: The Bluebird Restoration Association of Wisconsin (Reprinted Bluebird, Vol. Only one box will be used by the female wren to nest and lay eggs in. These are called dummy nests and it is legal to remove them. The male wren fills as many boxes in his territory with twigs to prevent other species from nesting. There is evidence that house wrens are moving progressively greater distances from their preferred habitat in order to nest, so 100’ may not be enough. Wrens do not like to fly across open areas that offer no cover for safety. If wrens become a problem try:ġ) Relocate your boxes 100’ from shrubby areas. Try to locate your boxers away from wren habitat and avoid the wrens tenacity. The house wren tends to nest near the edges of deciduous forests, farm yards, brushy edges, riparian habitats, city parks and residential areas with trees. This delay erases the 2-3 week head start the bluebirds usually have on other species, resulting in more direct competition for the nesting boxes. Colder than normal weather in the over wintering grounds suppresses reproduction of bluebirds in the spring. The impacts can be significant, especially when other factors such as inclement weather have major impacts on our bluebird population. Nothing is more discouraging that finding bluebird eggs, with small holes pecked in them, laying on the ground in front of the box and the box filled with twigs. Besides competing for a nest box, house wrens destroy the eggs on any species nesting within their territory. In New Jersey, house wrens are extremely common and are one of the primary species that have a negative impact on our breeding bluebirds. House wrens are native species protected by the Migratory Bird Treaty Act but happen to be major nest competitors of bluebirds and other cavity nesting birds.
0 Comments
Leave a Reply. |