What could be wrong with this gander?

[Canadageeselover88]

At this lake I go to, this pair with goslings the other day I noticed his chest was bleeding a little bit and then the next day I noticed his chin under his bill was really swollen. Not sure what this could be from..

 

[Silkies rule Forever]

Hmm he could have been hurt or attacked!

 

[Miss Lydia]

Might have been snake bit.

 

[Gray Farms]

Probably swelling from an injury.