Legend (reference/bird_conservation_region_cached)

BCR (1) <all other values> Aleutian/Bering Sea Islands Altos De Chiapas Appalachian Mountains Archipielago De Revillagigedo Arctic Plains and Mountains Arrecife Alacranes Atlantic Northern Forest Badlands and Prairies Boreal Hardwood Transition Boreal Softwood Shield Boreal Taiga Plains Central Hardwoods Central Mixed Grass Prairie Chihuahuan Desert Coastal California Cuenca Del Rio Balsas Depresiones Intermontanas Desierto De Baja California Eastern Tallgrass Prairie Edwards Plateau Eje Neovolcanico Transversal Great Basin Gulf Coastal Prairie Isla Conzumel Isla Guadalupe Islas Del Golfo De California Islas Marias Los Tuxtlas Lower Great Lakes/St.Lawrence Plain Marismas Nacionales Mississippi Alluvial Valley New England/Mid-Atlantic Coast Northern Pacific Rainforest Northern Rockies Northwestern Interior Forest Oaks and Prairies Pantanos De Centla-Laguna De Terminos Peninsular Florida Piedmont Plancie de la Peninsula de Yucatan Planice Coastera Del Soconusco Planice Coastera y Lomerios Del Golfo De Mexico Planice Coastera y Lomerios Del Pacifico Sur Planice Coastera y Lomerios Secos Del Golfo De Mexico Planice Coastera, Lomerios y Canones De Occidente Planice Noroccidental de Yucatan Prairie Hardwood Tansition Prairie Potholes Shortgrass Prairie Sierra Madre Occidental Sierra Madre Oriental Sierra Madre de Chiapas Sierra Madre del Sur Sierra Nevada Sierra Norte de Puebla-Oaxaca Sierras de Baja California Sierras y Planicies del Cabo Sonoran and Mojave Deserts Southeastern Coastal Plain Southern Rockies/Colorado Plateau Sur del Altiplano Mexicano Taiga Shield and Hudson Plains Tamaulipan Brushlands Valle Tehuacan-Cuicatlan West Gulf Coastal Plain/Ouachitas Western Alaska BCR 100 (2) <all other values> Aleutian/Bering Sea Islands Altos De Chiapas Appalachian Mountains Archipielago De Revillagigedo Arctic Plains and Mountains Arrecife Alacranes Atlantic Northern Forest Badlands and Prairies Boreal Hardwood Transition Boreal Softwood Shield Boreal Taiga Plains Central Hardwoods Central Mixed Grass Prairie Chihuahuan Desert Coastal California Cuenca Del Rio Balsas Depresiones Intermontanas Desierto De Baja California Eastern Tallgrass Prairie Edwards Plateau Eje Neovolcanico Transversal Great Basin Gulf Coastal Prairie Isla Conzumel Isla Guadalupe Islas Del Golfo De California Islas Marias Los Tuxtlas Lower Great Lakes/St.Lawrence Plain Marismas Nacionales Mississippi Alluvial Valley New England/Mid-Atlantic Coast Northern Pacific Rainforest Northern Rockies Northwestern Interior Forest Oaks and Prairies Pantanos De Centla-Laguna De Terminos Peninsular Florida Piedmont Plancie de la Peninsula de Yucatan Planice Coastera Del Soconusco Planice Coastera y Lomerios Del Golfo De Mexico Planice Coastera y Lomerios Del Pacifico Sur Planice Coastera y Lomerios Secos Del Golfo De Mexico Planice Coastera, Lomerios y Canones De Occidente Planice Noroccidental de Yucatan Prairie Hardwood Tansition Prairie Potholes Shortgrass Prairie Sierra Madre Occidental Sierra Madre Oriental Sierra Madre de Chiapas Sierra Madre del Sur Sierra Nevada Sierra Norte de Puebla-Oaxaca Sierras de Baja California Sierras y Planicies del Cabo Sonoran and Mojave Deserts Southeastern Coastal Plain Southern Rockies/Colorado Plateau Sur del Altiplano Mexicano Taiga Shield and Hudson Plains Tamaulipan Brushlands Valle Tehuacan-Cuicatlan West Gulf Coastal Plain/Ouachitas Western Alaska BCR 1000 (3) <all other values> Aleutian/Bering Sea Islands Altos De Chiapas Appalachian Mountains Archipielago De Revillagigedo Arctic Plains and Mountains Arrecife Alacranes Atlantic Northern Forest Badlands and Prairies Boreal Hardwood Transition Boreal Softwood Shield Boreal Taiga Plains Central Hardwoods Central Mixed Grass Prairie Chihuahuan Desert Coastal California Cuenca Del Rio Balsas Depresiones Intermontanas Desierto De Baja California Eastern Tallgrass Prairie Edwards Plateau Eje Neovolcanico Transversal Great Basin Gulf Coastal Prairie Isla Conzumel Isla Guadalupe Islas Del Golfo De California Islas Marias Los Tuxtlas Lower Great Lakes/St.Lawrence Plain Marismas Nacionales Mississippi Alluvial Valley New England/Mid-Atlantic Coast Northern Pacific Rainforest Northern Rockies Northwestern Interior Forest Oaks and Prairies Pantanos De Centla-Laguna De Terminos Peninsular Florida Piedmont Plancie de la Peninsula de Yucatan Planice Coastera Del Soconusco Planice Coastera y Lomerios Del Golfo De Mexico Planice Coastera y Lomerios Del Pacifico Sur Planice Coastera y Lomerios Secos Del Golfo De Mexico Planice Coastera, Lomerios y Canones De Occidente Planice Noroccidental de Yucatan Prairie Hardwood Tansition Prairie Potholes Shortgrass Prairie Sierra Madre Occidental Sierra Madre Oriental Sierra Madre de Chiapas Sierra Madre del Sur Sierra Nevada Sierra Norte de Puebla-Oaxaca Sierras de Baja California Sierras y Planicies del Cabo Sonoran and Mojave Deserts Southeastern Coastal Plain Southern Rockies/Colorado Plateau Sur del Altiplano Mexicano Taiga Shield and Hudson Plains Tamaulipan Brushlands Valle Tehuacan-Cuicatlan West Gulf Coastal Plain/Ouachitas Western Alaska