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By Dave Grant ![]() After cleaning, a swan preens its feathers. In late December, 1976, the oil tanker Olympic
Games ran aground in lower Delaware Bay and spilled 130,000
gallons of crude oil at a time when the bay was heavily populated
with wintering waterfowl.
On New Year's Eve, I went down to the bay to gather information
on the waterfowl rescue effort there. About l75-birds were already undergoing treatment on the second day of operations. Field recoveries in a disaster like this probably account for less than half the number if affected birds (It is hard to get to the shoreline here to find them; and birds tend to flee their captors/saviors; another half, at least, sink offshore and drown). The vulnerable diving ducks, primarily ruddies, some scaup, and one goldeneye comprised most of the total. Canada geese were next, outnumbering the other surface feeders - mallards, black ducks, and a single whistling swan. These proportions are probably representative of the bird population of the Bay area at that season since it is a major wintering area for waterbirds. Treatment followed the recommended procedures
of previous recovery efforts: Steps 1 and 2 are repeated as necessary. After several days the birds are taken in by groups (SPCA, Ducks Unlimited, game farms) for recuperation and eventual release. ![]() Ruddy ducks, scaup and a swan are dried under heat lamps in a warming tent. Recovery rates vary between 0-100% depending
on the species (ruddies are low, scaup high, for example), season
(winter is worst), and the effectiveness of the treatment. Less
that 50% is a realistic recovery target. It is not a question of if an oil spill will
occur in a given area; the question is: when. At a bare
minimum, each state should have in place a skeleton emergency
procedure that includes one person in charge, locations where
waterfowl should be brought, and a set of instructions for gathering
the people and materials necessary to immediately begin the rescue
operation. NOTE: Grant
is a graduate student at Long Island University. He recently
prepared a Society report on the use of bridges for fishing.
For those interested in reading in more detail about the problems of treating oiled birds, the following references will be helpful: "Aid to Oiled Waterfowl" by Keith G. Hay, Atlantic Naturalist 30/4, Winter 1975; "The Status of Oiled Wildlife: Research
and Planning," by Keith G. Hay, "The heat production of oiled mallards and scaup" by E.H. McEwan and A.F.C. Koelink, in Canadian Journal of Zoology.51:27- 31, 1973.
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