Just recently this weekend my Green Wing Macaw has gotton very bad breath what can cause this & what can i do?

bad breath
amber_36532 asked:

*His diet is the same,he travels with from from work and home(i’m a zookeeper)he gets two different brands of seed,but it’s been consistant,no new changes and his droppings are the same as always.I haven’t noticed any difference in him except for this horrible breath

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