Red-winged Blackbirds were very active at the beach at Fortescue, NJ while the birds were feasting on Horseshoe Crab eggs. I couldn’t help noticing the following male who seemed quite feisty patrolling the beach close to its territory in the dunes.
When not on the beach, he perched on a nearby tree and belted out his warning calls.
He was not scared of and studiously ignored a bigger Boat-tailed Grackle that was only a short distance away, singing his own warning calls.