Free-tailed bats

Free-tailed bats

Order : Chiroptera
Family : Molossidae


Facts about the family Molossidae, the free-tailed bats

Like many state birds, Mexican free-tailed bats aren’t faithful to their adoptive state.

Migration for Mexican free-tailed bats is essentially a behavioral adaptation to minimize body heat loss.

'; TEXTNOTE ID=1 TITLE=Geographic_Distribution TEXT='The geographical distribution of Molossidae is shown in red.

DISTRIBUTION: Eumops underwoodi, a member of the Family Molossidae, is known in the United States only from a few localities in Pima County, Arizona.

Mexican free-tailed bats are also known as "guano bats" for the prodigious quantities of droppings that they produce.

Mexican Free-tailed Bats are born in June and weaned in five weeks when they can fly with their mothers.

Mexican free-tailed bats are migratory, and in the southwestern United States are present from April through September.

Our research on Mexican free-tailed bats is already underway with two projects in Central Texas directed by BCI and Dr.

Pesticides and Bats A new stress commonly implicated in the decline of free-tailed bats is the use of organochlorine pesticides, specifically DDT and dieldrin.

Pollak, Response selectivity for species-specific calls in the inferior colliculus of Mexican free-tailed bats is generated by inhibition, Journal of Neurophysiology, Vol.

The characteristic odor of Mexican free-tailed bats is found by analyzing the volatiles from their roosts or their urine, but it is too strong to be called ‘taco shell’ from these sources unless diluted.

The massive Gua Payau Cave, with its evening emergence of nearly two million free-tailed bats, is the main feature that attracts adventuresome visitors to the park.

The sight of twenty million emerging free-tailed bats is a never-to-be-forgotten experience.

The geographical distribution of Molossidae is shown in red. (Full text)

Free-tailed bats are found worldwide in warm regions. (Full text)

Other free-tailed bats are smaller. (Full text)

Similar Species Except for Little Free-tailed, which occurs only in Florida Keys and has ears joined at the base, all other free-tailed bats are considerably larger. (Full text)

One alternate name for free-tailed bats is "bulldog bats", and the German equivalent is Bulldog-Fledermäuse, so perhaps a "Molossian hound" was something like a bulldog. (Full text)

Conservation and Management: Although big free-tailed bats are locally abundant, they (Full text)

Human EncountersMexican free-tailed bats are the most commonly encountered bats in Texas, and their spectacular evening emergences are easily observed (see page 66). (Full text)

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