Several of these Red-Rumped Cacique nest in the same tree. When any bird flies off to get more material like this,
other birds would frequently rip parts off this one's nest. And this went on all over the tree all morning.
How on earth they EVER finish with all the pirating and fighting going on is a mystery to me.
Refugio Da Ilha Region of Southern Pantanal, Brasil
Sept - 2009