Sandhill Crane, Pixley National Wildlife Refuge
33:03
Gray heron fishing / Wild bird
6:45
The Great Sandhill Crane Migration
10:16
Morning Crane Flyout Merced National Wildlife Refuge
36:43
Long-billed Curlew "MV DOZER," Morro Strand State Beach, Morro Bay, CA
5:55
Chapter 1A Black-bellied Whistling Ducks Flock Location on the Eastside of Savannah Wildlife Refuge
12:33
«El Barbecho» documental rodado en 1934. Filmoteca rtve.
22:49
Dentro de la Legión Romana: una clase magistral militar
16:28