You can report dead animals on public property, including highways, parks, and in large bodies of water.
You can bring the remains of a dead pet to an Animal Care Centers of NYC drop-off location to be cremated for a fee.
You can also put a dead animal out for pickup by the Department of Sanitation on your garbage day. The remains must be placed in a heavy-duty black plastic bag or double plastic bag and a note should be taped to the bag stating its contents (for example, "dead dog" or "dead cat"). Animals that may have been rabid should not be put in the trash.