He hasn't been turned out but I know there is a LOT of pollen in the air. It sticks to his fly spray and he's got a gold layer all over him. I never thought of allergies,if he can't smell maybe the hay doesn't seem good to him. He will eat almost anything put in the grain bucket though as long as its the proper texture. There are also trees that are spewing white fluff everywhere. Not sure what they are called but it looks like it has been snowing and Cinny HATES the stuff and even kicks when it lands on him.
Is he on pasture during the day? Mine is basically refusing to eat hay right now, he'll sloooooowly pick through his hay at night in his stall but leave a fair bit and won't touch his hay at all during the day, too busy eating grass.