Episode 1 (S11E1)
6/11/1973
Pajaten (S11E2)
6/24/1973
Lapwing (S11E3)
7/1/1973
Bird's Eye View of London (S11E4)
7/15/1973
Do Not Disturb (S11E5)
7/22/1973
A Wealth of Wildfowl (S11E6)
7/29/1973
Aldabra Reprieved (S11E7)
8/5/1973
The Empty Desert (S11E8)
9/12/1973
Episode 9 (S11E9)
9/19/1973
The Floating Worlds of Naivasha (S11E10)
9/26/1973
Trail of the Snow Geese (S11E11)
10/3/1973
Arctic Summer (S11E12)
10/10/1973
Land of the Loon (S11E13)
10/17/1973
Central Flyway (S11E14)
10/24/1973
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