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Houses for Your Yard: |
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SHELTER-
Birds, like other animals, require a number of dif ferent kinds
of shelter. They look for a handy haven when threatened by a predator.
They need a place to rest and sleep and be protected from driving
wind, rain, and snow. And they need a secure spot to raise their
young.
The
last of these requirements is the most specific. Birds can be very
fussy about where they will nest. The ovenbird constructs a little
domed hut on the forest floor, while orioles weave a delicate bag
high in the branches of an elm or maple. When dive-bombed by a hawk,
however, a nearby thicket of almost any sort will be a welcome sanctuary
for quite a number of birds.
Many
of the same plants that provide food also offer shelter, though
birds may not nest where they feed. So, once again, plan a varied
landscape to accommodate a range of birds. Choose plants of differing
heights and densities. Because a few large trees can dominate a
city lot, shrubs and smaller trees allow for more diversity. Evergreens
are particularly valuable. Hollies, junipers, pines, and cedars
all provide year-round shelter and food. In warmer climates, evergreen
oaks and southern magnolia do the same. "Natural" hedges
and screens that are pruned lightly if at all are likely to work
better for birds. Formal, sheared hedges can develop almost impenetrably
dense branching structures.
Wildlife
is prolific where different habitats meet. Naturalists call this
the "edge effect." You can create similar conditions by
planting a small woodland on one corner of the property or along
a fence line, with trees at the back and shrubs of various sizes
extending to the lawn or, better yet, a strip of "meadow"
where native grasses mingle with wildflowers.
Shelter
needn't be alive. Dead trees, piles of brush, hollow logs, eaves
and attics of buildings can all be valuable. Tidy people attempting
to encourage wildlife have to balance their desire for orderliness
with the attractions of a "messy" landscape to birds and
other creatures.
Birdhouses-
Sometimes the natural cover you can provide isn't right for nesting.
And sometimes children (and adults) want to take a more active role
in nature's domestic dramas. Whatever the reason, people have been
building birdhouses for a long time.
You
need not be much of a carpenter to build a sat isfactory birdhouse
(or nesting box, as they are more accurately called). All you need
is a hand saw, brace-and-bit or electric drill, hammer, and a few
nails. A small supply of 3/4-inch-thick wood, purchased at the local
lumberyard or home center or salvaged from a tumbled-down barn,
will work just fine.
Birds
don't really care what style the structure assumes, but they have
definite preferences for the accommodation's interior dimensions,
the size of the main entrance and its height above the box floor,
and the box's height above the ground.
In
addition to making the box the right size, make it easy to clean
so you can offer it year after year. A hinged roof or removable
floor works best for cleaning. Remember how stuffy a tightly enclosed
room can be on a warm day, so don't make the box airtight; add slits
if necessary for ventilation. Bore small holes in the floor so rainwater
can drain out. Birds are more likely to nest in a box that is stationary
than in one swinging in the breeze.
If
you put it on a pole, add a bowl as described for feeders to discourage
unwanted guests. When you place a box, try to think like a bird-where
will the box be safest from predators?
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