thousands
6
4
2
20
18
16
14
12
10
8
TOTAL NUMBERS OF WATERFOWL
DEEP BAY
79
80
81
82
83
84.
85
86
87
A Cormorant
Ducks
Herons, egrets, etc.
Rails
* Waders
Gulls, terns
(after Melville 1987)
thousands
6
4
2
20
18
16
14
12
10
8
TOTAL NUMBERS OF WATERFOWL
DEEP BAY
79
80
81
82
83
84.
85
86
87
A Cormorant
Ducks
Herons, egrets, etc.
Rails
* Waders
Gulls, terns
(after Melville 1987)