I've got 7 chickens: Australorp rooster, 22 weeks old, 6.4 lbs Buff Orp Rooster, 20 weeks, 4.6 lbs Marans Pullet 2, 22 weeks (?), 4.8 lbs Marans Pullet 1, 21 weeks (?), 4.2 lbs Barred Rock Pullet, 21 weeks, 3.8 lbs New Hampshire Red, 21 weeks, 3.8 lbs Easter Egg Pullet, 21 weeks (?), 3.2 lbs I took the Buff Orp to the vet yesterday to get a culture since both roosters have been sneezing, and 2 pullets started gaping. The vet thought the Buff Orp was too thin. So, I weighed them all today. Does his weight seems proportionate with the rest of the flock? Are all my chickens thin?