Laws and Regulations Emergency Determination of Critical Habitat for Mississippi Sandhill Crane; 40 FR 27501 27502 (Grus canadensis pulla) Jun 30, 1975 Document Citation 40 FR 27501 Mississippi Sandhill Crane, Determination of Critical Habitat; 40 FR 40521 40522 (Grus canadensis pulla) Sep 3, 1975 Document Citation 40 FR 40521
