In addition, canned spray foam is not an approved sealant for cracks and holes in most situations. It is not only unattractive, but can result in the death of bats that come into contact with it. This product should never be used when bats are still present. Traps and relocation are not BCI approved exclusion techniques. Removing large numbers of bats from a building may seem impressive to a customer, but is unlikely to be effective.
Traps can be fatal to bats if left unattended or if overcrowding occurs.
Bats have excellent homing instincts making relocation attempts unlikely to succeed. They will simply attempt to return to the original capture area upon release. Capturing bats at an exclusion site is not encouraged, although capturing a single bat for species ID or removal of an individual bat from a living space are exceptions to this rule. Bat Conservation International, Inc., 2001. Absolutely no rights of distribution by sale or other transfer of ownership or by rental, lease or lending, preparation of derivative works, or reproduction, in whole or in part, is granted.