just a little concerned, i ve been out to feed the chickens and saw some poops with red in them (not liquidy blood red but..how should i describe it..stringy/rubbery looking bits of red? im guessing this is not normal...any ideas what could cause this?? how do i find out which chicken its from, theres over 50 out there! edit to add..i do have a 13 week old pullet with poo around her bum whos was a little lethargic yesterday but seems better today..could it be her? for the rest..all the other chickens seem fine?