Births in cats, lions, tigers and all cats, as well as in sheep and goats, and also, strangely enough, in rabbits and even in whites, are called corns.
Why - I don't know, apparently, because it's easier than to come up with all kinds of words such as worship, worship and the like.
Although for sheep in Ushakov's dictionary there is an option - lamb.
And for rabbits, I heard the option - okrol.
But both of these words are used much less often than the traditional corner.