When a mail courier attempts to make a routine delivery to a home, the rooster that's out front isn't having any of it. We're giving this guy props for getting past the feisty bird and getting that package to the doorstep. All in a day's work, apparently.
Speaking of aggressive birds, this one in Argentina is coming for every and anyone that comes near its nest. The thing is, its nest is right next to a walkway with heavy foot traffic from a nearby university. It looks like this bird will be pecking heads all day long.