Hawks, Owls, Mongoose, Roosters, Oh My ...!!
I have never seen a hawk here. With so few birds and small mammals it is hard to see how they could flourish, unless they went after chickens, of course. Consider that there aren't any vultures here, either, apparently for the same reason.
Concerning chickens, I've never heard farmers complain about hawks, or mongooses either, which would surely find them easy pickings.
With all due respect, I don't believe that mongooses exist here. There are no poisonous snakes to be exterminated, hence no reason to import them. An American friend who has lived many years here in the campo claims to have only seen 1 - you guessed it, at dusk, from a distance. It could have been a big rat, or cat, or small dog, or even GASP - a rabbit. So many rabbits are here in cages in the campo that surely some of them escape occasionally (although obviously not in sufficient pairs).
The owls I have seen are miniature and could probably only prey on bugs. They don't have much of a hoot, either.
Concerning roosters that can't tell time, I believe that it is the city slicker roosters kept in too small cages, confused by shadows from buildings, etc. After all, what do you expect from city slickers.
ONE FASCINATING nocturnal creature that is fairly common but I haven't seen mentioned is a giant firefly, with a light maybe 5 times as big as that of the typical firefly.