With you and Dad both feeding, the Crop may be a little overfull. Back out and let him take care of his chick. Keep an eye on the crop it should go down, and with dad feeding regularly you will come to recognize a full and empty crop. Keep us posted on the situation and we would love to see pic's, especially if you could share one of this full crop you are concerned with.
He came down from Heaven unto this earth below
He came down from glory and praises untold
He came down to man fashioned in their way
He came down to rescue, He came down to save