I saw a dead gull the bones were white . It was a juvenile I now that it was a juvenile because when I looked at the juvenile gulls they were gray the adults were gray and white .all of the soft organs were eaten .I thought that it was the limping gull .It was not the limping gull .The limping gull is a immature gull. 
Hey Connor,
How can you tell the difference between a juvenile gull and an immature gull besides just size?
Thanks,
Andrew
What do you think killed it? Did you see what the insides of the bones were like?
Andrew
thank for the question
I got the imfermaishin for the Sibley guide to birds. With dad help I fond this imfermaishin the dead gull is a juvenile gull. A juvenile gull are dark gray. 1st winter gull are lite gray.
uncle Jonathan
thanks for the question
I think a hawk killed it.yes I did it was brown inside. there were no meet haiging for the bones.