Green herons are not considered threatened or endangered. They are fairly common in appropriate habitats throughout their range. They are killed by fish hatcheries to prevent them eating young fish, suffer as a result of wetland loss to farming and development, and can accumulate poisons in their tissues from pesticide use and toxic releases into waterways.
IUCN Red List of Threatened Species: least concern
US Migratory Bird Act: protected
US Federal List: no special status
CITES: no special status
State of Michigan List: no special status
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