Birds do take baths on ant mounts to rid themselves of parasites.

An Acid Bird Bath | Wildest Wonders
In nature, certain species of birds rely on a special kind of ant to help them bathe.➡ http://bit.ly/NatGeoWILDSubscribe➡ Watch all clips from Des…
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It is painful for the bird because the ants do bite, but the birds stands it because of the benefits. God’s creation is great!