Help 10 day old gosling can't eat

[PaxtonSunny]

Gosling can't eat. Picks at greens but won't eat them. Wont eat food. No energy. Threw up. Was fine yesterday. Help! Could it be some dog hair she picked up??

 

[Miss Lydia]

How much dog hair did the lil gosling pick up? could be a crop problem was it eating good before Monday? any chance of a vet visit?