About 4 days ago "Daisy" started to develop the large breast - so we started watching her. After reading around I figured she had an impacted, or sour crop.
Her crop is large, but soft, just like a water balloon. you can see her bulging skin beneath her baby feathers.
The day before yesterday it occurred to us that Daisy is no smaller than her siblings - I think she stopped growing. The amazing rate of growth in the normal chicks really stands out; two days later it's a very noticeable difference. That tells me that she's not really getting food.
Yesterday night I turned her upside down and massaged her cop, and caused her to puke everything out. I don't have that great of a sense of smell, I couldn't tell if it was sour or not, but it was basically a gooey paste. some wood chips came out and a piece of grass or two. So last night we put her into quarantine, took away the starter chick crumbles, and have been giving her bread soaked in olive oil. Today we gave her some plain yogurt.
Today, she's all filled up again. Three times today I've turned her upside down and emptied the poor dear out and she fills right back up again. each time I see less and less "debris" like wood chips, but it's still the same brown paste.
Here's a picture of daisy after I emptied her crop. She's got a plate of bread/olive oil and a dollop of yogurt.
Edited by CptCluck - 4/2/12 at 6:53pm