ulular

ulular
oo-loo-lahr'
to howl; to hoot; to wail
Examples
1. El búho se volteó y me ululó.
The owl turned its head and hooted at me.
 
2. Al olfatear la liebre, los coyotes empezaron a ulular.
When they scented the hare, the coyotes began to howl.