This is disappointing for sure. The director of MDARD does have the authority, under Animal Industry Act 466.
http://www.legislature.mi.gov/(S(ra...5))/documents/mcl/pdf/mcl-Act-466-of-1988.pdf
And it looks like Michigan was placed under quarantine, according to their website: http://www.michigan.gov/documents/mdard/Poultry_Quarantine_Final_1_490684_7.pdf?20150602144903
I have no idea how they would enforce it though...
http://www.legislature.mi.gov/(S(ra...5))/documents/mcl/pdf/mcl-Act-466-of-1988.pdf
And it looks like Michigan was placed under quarantine, according to their website: http://www.michigan.gov/documents/mdard/Poultry_Quarantine_Final_1_490684_7.pdf?20150602144903
I have no idea how they would enforce it though...