Great Blue Herons Expelling Bile? (Graphic)

By |March 31st, 2016|Categories: Bear River Migratory Bird Refuge, Birds, Box Elder County, Florida, Fort De Soto County Park, Great Blue Herons, Pinellas County, Utah|Tags: , , , , , , , , , |

I have only seen and photographed these two Great Blue Herons expelling bile in Florida and Utah. I wonder how often this occurs.