I am posting here for a second opinion. I am just starting up with pigeons and I have 5 homing pigeons. One of my females is slightly smaller than the other hen, and she flys kind of awkwardly, almost as if she is not strong on the wing. She does move from perch to perch, and when she flys down to feed she anything but graceful kind of hits with a plop. She eats well, drinks, and i have added calcium to their water thinking she may be deficient. I was advised on another board to medicate. She has solid droppings and looks fine, acts fine, just is not a strong flyer at all. She has been vaccinated for PMV, and salmonella. Any ideas or input?