They have to sit and mark them good but we didnt loose a dove the night mine picked up 75. Being we have been running alot of long marks in training he had to check up a few times but he always made it back to the area of the fall. We ran a fair amount of blinds also.I usually run the cheapest I can find for doves because yeah I miss allot but using the high velocity ammo was double the price but my average jumped way up not many misses now finding the little suckers after the fall is a different story and if the dog doesn't see it fall they have trouble finding them I wonder if the smell is different or just weak cause they could be standing on it and not notice lol but they find every other game bird curious how other breeds react to doves