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Blackbird Control Legal Status: Are Blackbirds Protected?

Blackbirds are federally protected by the United States under Federal Migratory Bird Treaty Act. They may only be killed when they are found “committing or about to commit depredations upon ornamental or shade trees, agricultural crops, livestock, or wildlife, or when concentrated in such numbers and manner as to constitute a health hazard or other nuisance,” as stated in federal laws regarding migratory birds (50 CFR 21). Additional blackbird killing restrictions will vary per state.

http://www.crittercontrol.com/facts/animals/blackbirds.html

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They may only be killed when they are found “committing or about to commit depredations upon ornamental or shade trees, agricultural crops, livestock, or wildlife, or when concentrated in such numbers and manner as to constitute a health hazard or other nuisance,”

Ain't seen a blackbird yet that didn't fill that bill.