Avian Cholera Mortality Events in Califonia -- Winter 1999
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LEGEND:
Red = Confirmed
Blue = Unconfirmed
Large dots
= more than 3000
Small dots = less than 3000
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1.
Hayward Water Treatment Wetlands
Alameda County
- Mortalities:
250
- Species:
Ruddy Ducks, Waterfowl
- Confirmed:
Yes
- Ongoing:
Yes
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2.
Llano Seco
Butte County
- Mortalities:
243
- Species:
Ducks
- Confirmed:
Yes
- Ongoing:
Yes
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3.
Delevan National Wildlife Refuge
Colusa County
- Mortalities:
1799
- Species:
Geese, Ducks, Coots
- Confirmed:
Yes
- Ongoing:
Yes
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4.
Colusa National Wildlife Refuge
Colusa County, California
- Mortalities:
1746
- Species:
Snow Geese, Coots, Ruddy Ducks
- Confirmed:
No
- Ongoing:
Yes
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5.
Sacramento National Wildlife Refuge
Glenn County
- Mortalities:
2350
- Species:
Geese, Coots
- Confirmed:
Yes
- Ongoing:
Yes
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6.
Lake Earl Wildlife Area
Del Norte County
- Mortalities:
5100
- Species:
Primarily Coots, Ruddy Ducks
- Confirmed:
Yes
- Ongoing:
Yes
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7.
Salton Sea National Wildlife Refuge
Imperial County
- Mortalities:
1620
- Species:
Grebes, Ruddy Ducks
- Confirmed:
Yes
- Ongoing:
Yes
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8.
Merced-Mariposa Pond
Merced County
- Mortalities:
1485
- Species:
Primarily Coots
- Confirmed:
No
- Ongoing:
Yes
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9.
San Luis National Wildlife Refuge (at West Bear Creek)
Merced County
- Mortalities:
4744
- Species:
Coots, Ducks
- Confirmed:
Yes
- Ongoing:
Yes
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10.
City of Davis Wetlands
Sacramento County
- Mortalities:
3500
- Species:
Ducks
- Confirmed:
Yes
- Ongoing:
Yes
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11.
Butte Sink National Wildlife Refuge
Sutter County
- Mortalities:
4103
- Species:
Ducks
- Confirmed:
Yes
- Ongoing:
Yes
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12.
Sutter National Wildlife Refuge
Sutter County
- Mortalities:
848
- Species:
Ducks, Coots
- Confirmed:
No
- Ongoing:
Yes
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13.
San Joaquin River National Wildlife Refuge and Page Lake
Stanislaus County
- Mortalities:
1037
- Species:
Geese, Ducks
- Confirmed:
Yes
- Ongoing:
Yes
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14.
Yolo Bypass Wildlife Area
Yolo County
- Mortalities:
8700
- Species:
Coots, Ruddy Ducks
- Confirmed:
Yes
- Ongoing:
Yes
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15.
Stone Lakes National Wildlife Refuge
Sacramento County
- Mortalities:
35
- Species:
Coots
- Confirmed:
No
- Ongoing:
Yes
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16.
Kesterson National Wildlife Refuge
Merced County
- Mortalities:
1500 (est.)
- Species:
Coots, Shorebirds
- Confirmed:
No
- Ongoing:
Yes
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17.
Private Area near Kesterson
Merced County
- Mortalities:
700 (est.)
- Species:
Coots, Shorebirds
- Confirmed:
No
- Ongoing:
Yes
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U.S. Department of the Interior | U.S. Geological Survey
