• 4 Videos, Slides, Films

• 1 DVDs

• 2 History
• 2 Technological innovations
• 2 Writing
• 1 Bird declines
• 1 Conservation
• 1 Gold mines and mining
• 1 Mines and mineral resources
• 1 Songbirds

• 2 Blake, Sally
• 2 DOX Productions Ltd.
• 2 Public Broadcasting Service (U.S.)
• 2 Robinson, Jeannette
• 2 Sington, David
• 2 Sington, Hugh (Television producer)
• 1 Alive Mind Cinema
• 1 Bullfrog Films
• 1 CAPA Presse
• 1 Delestrac, Denis, 1968-
• 1 Docuseek2 (Firm)
• 1 Jackson, Joanne P.
• 1 Kensington Communications
• 1 La Fouchardière, Martin de
• 1 Lang, Robert (Robert G.)
• 1 Rynard, Susan
• 1 SongbirdSOS Productions
• 1 Strong, Philip
• 1 Woods, Diane

• 4 English
• 1 Spanish

• 2 Documentary films
• 2 Documentary television programs
• 2 Feature films
• 2 Nonfiction films
• 2 Nonfiction television programs
• 1 Educational films
• 1 Environmental films
• 1 Internet videos
• 1 Nature films
• 1 Video recordings for the hearing impaired
• 1 Wildlife films

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