My boy kitty sounds like her twin...it appears he can't tolerate poultry - and worse it not only seems to cause puking, but he gets crystals in his urine too! So no birdy foods for him. This is just supposition really... but the first time he ended up with a UT crisis I'd recently switched him to a high quality all meat kibble made from duck. After that I went to a full time 100% meat 100% canned food diet. I'd been feeding exclusively Ziwi Peak canned. The second time he started having problems (I caught it quickly before it was a crisis the second time thankfully) I had tried to introduce some canned 100% turkey and duck foods in for a little variety... a week or two later he started showing signs of UI problems again. Back to only Ziwi Peak and no problems - their flavors are fish, venison and lamb based.

From that I can only surmise that he has some serious problems with poultry...

He also horks really easily... if he eats too much - hork, too fast - hork, cold food - hork.... ugh... so he gets fed small amounts 3 times a day and if the food has been in the fridge it gets warmed about 10 secs in the micro. (oh and I've tried raw foods.... hork...) I appear to have it controlled. He only pukes now if he's got a hairball to work out - whew!