Sunday, July 18, 2010

Bats:


Northeastern United States:
Big brown bats commonly use bat houses in the Northeastern U.S.

This is very timely:
the latest newsletter from The Texas Gardener' Seeds said: Put up a bat house to encourage the presence of these shy animals. Bats consume 3,000 or more mosquitoes and other insects nightly, and bats are less likely to be rabid than dogs are. Need another reason? Bats are responsible for up to 95 percent of the seed dispersal essential to the regeneration of forests. Contrary to believe, bats will not just attack people for no reason. They feed on small insects not humans. Bats are extremely important. Yet due to years of unwarranted human fear and persecution, bats are in alarming decline. By putting up a bat house you are helping by giving them a home. You will also benefit from having fewer yard and garden pests, and will enjoy learning about bats and sharing your knowledge with friends and family.
So add a Bat House to your yard, and relieve yourself of those little bugs like Mosquitoes.
Where you mount your bat house plays a major role in the internal temperature. Houses can be mounted on such structures as poles, sides of buildings and tall trees without obstructions. Houses placed on poles and structures tend to become occupied quicker than houses placed on trees. Bat houses should face south to southeast to take advantage of the morning sun. In northern states and Canada, bat houses need to receive at least 6 to 8 hours of direct sunlight. It is also advantageous to paint the house black to absorb plenty of heat (when baby bats are born, they need it very warm). Use non-toxic, latex paint to paint your bat house and only paint the outside. Your bat house should be mounted at least 15 feet above the ground, the higher the house the greater the chance of attracting bats. Bats return from migration and awaken from hibernation as early as March in most of the U.S., but stay active year-round in the extreme southern U.S. They will be abundant through out the summer and into late fall. Most houses used by bats are occupied in the first 1 to 6 months (during the first summer the bat house was erected). If bats do not roost in your house by the end of the second summer, move the house to another location.

What types of bats can I expect to see in my bat house in the Northeastern states?
Throughout the northern two-thirds of the U.S. and Canada, the Little Brown Bat (Myotis launchings) and the Big Brown Bat (Eptesicus fuscus) use bat houses. They can also inhabit the Southeast, but are generally replaced by the South-eastern Bat (Myotis Australia). Pallid Bats (Antrozous pallidus) are found in arid areas. The Evening Bat (Nycticeius humeralis), Eastern Pipistrelle (Pipistrellus subflavus), Yuma myotis (Myotis yumanensis) and the Mexican Free-tailed Bat (Tadarida brasiliensis) will also use bat houses. Any bats that roost in crevices or under bridges and in buildings are likely tenants for bat houses.