Embed Bird migrations shifting with warming planet in US Southwest Embed The code has been copied to your clipboard. width px height px The URL has been copied to your clipboard No media source currently available 0:00 0:02:36 0:00 Download 240p | 7.5MB 360p | 12.1MB 480p | 21.8MB 720p | 38.1MB 1080p | 62.2MB In the Southwest United States, bird migrations are shifting as global temperatures warm. Gustavo Martіnez Contreras takes us to the Bosque del Apache National Wildlife Refuge in the state of New Mexico.