Thank you so very much, Regal Swan.
I was able to catch the swan today and get him/her to Volunteer for Wildlife here on Long Island. I sent them my photos before hand and also your response to me about the situation. They are evaluating. First review says tissue doesn’t look good but will see the avian vet in the morning. Outcome may not be good but he is in a place where he/She has the best possible chance.
Thank you for everything.