A quick lunchtime walk along DeKorte Park's Marsh Discovery Trail was filled with dining swallows and assorted ducks — plus a very aggressive Red-winged Blackbird who swooped close overhead on two occasions as we tried to get out of range as quickly as possible.
In the above photo, he can seen giving us the hairy eyeball. Clearly, this dude is protecting a nest. If walking the MDT, best to wear a hat and walk briskly.