This was the reply on Snopes:
"My wife says that if you throw gum on the street, a bird will eat the gum and die from it. Will a bird attempt to eat the gum?"
For the answer, we took Jerry's question to several Central Pennsylvania wildlife experts, who deal with different species of birds.
In one response, ZooAmerica (Hershey, PA) Director Troy Stump responded via email with the following:
"After careful consideration and discussion among our zoo staff, Here is our conclusion. Chewing gum, in and of itself, is not and would not be a fatal substance for a bird to ingest and may draw some birds' interest. However, there are many variables, and we know better than to say anything could never happen. It is conceivable that a very small bird could attempt to eat a very large piece of gum. Obviously anything that might be large enough to lodge in an airway, be it bird or human, can be a problem."
Also answering Jerry's question, was Ern Tobias of Lake Tobias Wildlife Park near Halifax, Dauphin County. Speaking to CBS 21 News over the phone, he said this about his experience with birds and gum ... and monkeys:
"The birds we have here at the park, it's unlikely that they would even try to eat it. They might peck at it once or twice, and realize it's not something they want to eat. We've never had a bird die from eating gum.
"The monkeys on the other hand, they do pick up gum and eat it, unfortunately. But just like some people swallow gum, I've never seen it hurt the monkeys, either."
Read more at http://www.snopes.com/critters/crusader ... kBJBt8c.99