By the late 1960s, the Guatemalan government had taken three steps to protect the grebe:
With the black bass excluded by a stone barricade, the scientist and the game warden released two pairs of giant grebes, 6,000 young native fish, and non-native bluegills in this refuge.
The population of the grebe recovered from its all-time low and increased over the years:
1965: 80
1968: 116
1969: 122
1971: 157
1973: 210
1975: 232
The population of the giant grebe seemed assured.
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