Coyote-Shepherd-Bully Hybrids howling

The American Bully mama doesn't howl or even hardly bark. The father Granger who is a Coyote-Shepherd mix that was living wild out here doesn't howl or bark a whole lot. However their puppies have been howling since they were a few weeks old. The one you hear barking is 'Littlest One' who has a developmental disability but seems to take most after her father.