Caring for Orphaned
Big Browns, Little Browns
and Evening Bats

Big brown, little brown and evening bat pups are born without fur and with their eyes closed. Their eyes are usually open within 2 to 10 days. Depending upon the species, these mothers have one to two babies. Pups sometimes become orphaned when bat exclusions are preformed at the wrong time of the year. The Bat World facility receives dozens of these orphans each year. 

Bat World milk formula is used to feed bat pups.  Subcutaneous injections of electrolytes are given to treat dehydration.
In most cases these pups can be fed warmed formula with a glass medicine dropper.  A small drop of warm milk is placed onto the pups lips to encourage it to lap. After it begins to lap, warm formula us dispensed a drop at a time until it's tummy is slightly rounded. 

Pups can also be taught to lap formula from small dishes. We special order stainless steel automotive freeze plugs for this purpose (the dish pictured to the left is only 1 & 1/8 inch in diameter!)

Some pups don't grasp the concept of lapping, so they are fed with foam eye-shadow applicator tips (right) that have been removed from the wand. Warmed formula is dispensed onto the tip, a drop at a time, until their tummies are rounded. Each pup nurses for approximately ten minutes. During the feeding process it is VERY important to keep the pups warm, dry and clean. The pups are checked throughout the day and they are fed again when their tummies become flat. 

After the pups have become comfortable lapping, we are able to make "assembly lines," to speed up the feeding process. The pups like to cuddle close with each other while lapping. Feedings take place up to six times daily, and the pups quickly put on weight. 

The orphans live together in warm, incubators that are padded with cloth pouches that they hide and play in. During the day they spend time grooming new fur growth and stretching their wings. After the pups reach about five weeks of age their formula is mixed half and half with blended mealworms. At six to seven weeks of age they are introduced to live mealworms and fed only twice a day. At six to eight weeks of age the orphans are moved into a large flight cage at our Wild Sanctuary, where they hone their flight skills and learn to forage for insects on their own. This process can take up to two more weeks.  During this time the pups are checked twice a day and offered mealworms. Once the pups exhibit the survival skills necessary to live on their own, they are marked for identification, and when possible, taken to their original roost and released back into their colony.

Photo, top right: Linda Lancey
Remaining photos: Amanda Lollar

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