pH is different than nitrogen/potassium/phosporus. You may be high in nitrogen from the poop, thats true. I suggest planting lettuce right now (where are you? whats your grow zone?) where you want tomatotes. It is a heavy nitrogen feeder. Just pop your little tomatoe in the middle (indeterminate will produce till fall, determinate will give you all over a few weeks, than maybe very few to none again) then surround it with leaf lettuce. Just pick the leves as they grow big, one at a time, and then as it warms, the growing tomatoe will shade them. Keep them well watered, since the faster they grow, the more nitrogen they will use. Then, when the tomatoe blooms, thin the severly or remove them.
Other heavy nit. feeders are carrots, onions, spinach, broccoli, etc. Tomatoes are heavy feeders. You could interplant with corn bunches. If its severely out of whack, just P and K fertilizer, but no N.
If your pH is acid, add lime. If your pH is alkaline, add peat moss. If its clay, add sand. If its sandy, add compost, and your quail poop will have helped too. Maybe make a compost pile of quail poo and grass from mowing, and weeds and leaves. That would be a nearly perfect mix eyeheart.