bat

– noun
1. any of numerous flying mammals of the order Chiroptera, of worldwide distribution in tropical and temperate regions, having modified forelimbs that serve as wings and are covered with a membranous skin extending to the hind limbs.
- idioms
2. blind as a bat, nearly or completely blind; having very poor vision.
3. have bats in one's belfry, to have crazy ideas; be very peculiar, erratic, or foolish.

bob·cat

– noun
1. a North American wildcat, Lynx Rufus, ranging from southern Canada to central Mexico, having a reddish-brown fur coat with black spots, tufted ears, and a short tail.