Foamy

[acriswell4]

My 4 month mallard drake has what looks like foam coming from his bill and is making a funny noise like chewing something. It is sticky.

 

[Eggcessive]

It might help to also post on the duck thread here: https://www.backyardchickens.com/f/42/ducks
Both Amiga and Miss Lidia answer a lot of posts about ducks. Here are a couple of links about common diseases in ducks:
http://www.raisingducks.org/common-duck-diseases
http://countrysidenetwork.com/daily/poultry/feed-health/common-duck-diseases/

 

[casportpony]

My 4 month mallard drake has what looks like foam coming from his bill and is making a funny noise like chewing something. It is sticky.

Check the inside of his mouth and throat and feel down the right hand side of his neck for blockages.

-Kathy