Eastern Bluebird |
Bluebirds are here in Texas year-‘round,
but are mainly active in the spring*. Recently they were almost wiped out, but are
now on the comeback trail. They still need your help, however.
During the middle of the 20th
century, Bluebirds (all 3 species) nearly became extinct in North America.
Pesticide use, habitat destruction and heavy competition from imported bird species
decimated Bluebird populations.
This drew the attention of concerned
individuals and groups who started an effort to provide human-made nesting
sites (birdhouses) in the remaining suitable habitat. These became known as “Bluebird
Trails”. At the same time, such nasty pesticides as DDT were banned and
Bluebirds made a comeback from the brink.
Since Bluebirds like grassland
habitat, you can put up a Bluebird house or two on the edge of your lawn (at
least 100 ft. apart though). Do it now, and in the spring you may see them
raise little Bluebirds. They’re here all winter, scoping out potential nest
sites for when it warms up.
*Bluebirds
living in Texas do not migrate in the typical sense that they fly to South
America for the winter. They are what are called “partial migrators”. The ones
spending summers up north (roughly north of the Mason-Dixon line) fly a little
to the south for the winter (Texas is part of “the south”). The ones that are here
in the summer stay here all winter, but usually fly a few miles to less developed
land where the food supply is more predictable.
Eastern Bluebirds |
They
hunt from a perch on top of the birdhouse, so I recommend adding a perch a foot
or so above the house, where an adult can scan the territory for insect
activity (unless there’s a well-placed tree branch within about 3 ft. of the birdhouse).
Though it may go without saying to most of you, sharply limit the use of pesticides - they kill Bluebirds' food (although they treat mealworms like candy, and it's almost all nestlings will eat). Even then, never spread pesticides over your whole lawn. Local use, like on a fire ant mound, is okay.
Though it may go without saying to most of you, sharply limit the use of pesticides - they kill Bluebirds' food (although they treat mealworms like candy, and it's almost all nestlings will eat). Even then, never spread pesticides over your whole lawn. Local use, like on a fire ant mound, is okay.
OWEN YOST, in
addition to being a blogger, is a licensed Landscape Architect emeritus who has
lived and worked in north Texas for over 30 years. He is the recipient of a
Lifetime Achievement Award of the Native Plant Society of Texas, and is a
member of the American Society of Landscape Architects (ASLA), International
Federation of Landscape Architects, National Wildlife Federation and the
Audubon Society. His office is at Yost87@charter.net
in Denton.
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