One of the wild Florida mottled ducks that frequent my backyard showed up this morning with some sort of plastic band around his neck. I tried to catch him unsuccessfully so I could remove it. He's too quick for me. I attached a photo that shows that his neck is swollen above the band so I think it ought to come off. However he is very active and feisty and chased off the other males. He has a mate, also. And he ate very well. But I worry about the eventual consequences of having this tight band on is neck. He seems pretty much fully grown but it looks like a problem to me. Any suggestions on how to catch him? Or should I even try?