There is no declension for plural animate nouns in Czech?
There is, see
so ´sheep´ here is singular?
No, it's accusative plural, same as nominative plural. Accusative singular would be velkou ovci
what about 'we are finding....'...is that not closer than 'looking for'?
Hledát means "to look for." "To find" is a completely different verb, najít.