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- [7] SEABIRD DENSITIES AND AGGREGATIONS DURING THE 1983 EL-NINO IN THE GALAPAGOS-ISLANDS WILSON BULLETIN, 1986, 98 (04): : 588 - 591
- [8] PRESENT STATUS OF THE FLIGHTLESS CORMORANT, GALAPAGOS PENGUIN AND GREATER FLAMINGO POPULATIONS IN THE GALAPAGOS-ISLANDS, ECUADOR, AFTER THE 1982-83 EL NINO CONDOR, 1987, 89 (02): : 276 - 281