Bats in Other Structures

Single bats in Garages and Sheds - Single bats may be found roosting in garages, barns, sheds and porches.  Single roosting bats are not a cause for alarm and do not mean that a colonial roost is about to form. Tricolored bats and Rafinesque’s big eared bats will use areas that are more exposed than other species, hanging in semi-dark areas of unused sheds or abandoned buildings. Tricolored bats also will occasionally fly into open garages. In these instances it is best to just allow these bats to leave on their own, since garages are typically not good roosting sites.

Bats using patio umbrellas - Evening bats have been known to use the folds of closed patio umbrellas. Outside of the maternity season, this is easily remedied by opening the umbrella after dark when bats have flown and then keeping the umbrella open. This makes the roost site unsuitable. Then secure the bottom to prevent bats from entering, or put the umbrella away and put it outdoors only when it will be opened. During bat maternity season, check for pups in the umbrella after the adult bats have flown. If no pups are present, then you can proceed as above for non-maternity season. If pups are present, then the umbrella should be left alone. Check in the umbrella again during mid-August and if no pups are present after dark, you can proceed as mentioned earlier.

Bats using picnic pavilions -Bats will use picnic pavilions when forming maternity colonies. Generally, bats will inhabit the rafters of the pavilion, where temperatures are increased and air flow is limited. If a maternity colony exists, a pile of guano will appear below the location of the colony. This can be concerning if guano is collecting on picnic benches or tables. However bats are not to be disturbed during the maternity season from April 15 to August 15.  Any attempt to exclude bats must be completed outside of this time period.

Bats in stadiums - Sports stadiums can provide a stable temperature environment for bats.  Bats have been found roosting in cracks and joints between the concrete along ramps and stadium walls.  Sometimes, maternity colonies will form in stadiums. Bats are not to be disturbed during the maternity season from April 15 – August 15.  Any attempt to exclude bats must be completed outside of this time period.