Den Mother

Den Mother is creatures in Fallout: New Vegas. the Den Mother is more so a formidable enemy than her weaker fellow Night Stalkers.

They appear to have a canine body, but with a rattlesnake-like head and tail. They also possess fangs, forked tongues, and snake-like eyes. Nightstalkers are the results of splicing coyote and rattlesnake DNA. In-game, they sound like regular coyotes with baby shakers. The Nightstalkers have the ability to cloak. They gained this ability from chewing on stealthboys from Nightkin corpses.

Appearances
s appear in Fallout: New Vegas.

There is a den of nightstalkers in the Morning Star Cavern which is found east of the Mojave Outpost.

There are also several in Charleston Cave northwest of Jacobstown.