Afterwards, he worked on some pioneering studies of the song of the Rufous-collared Sparrow (Zonotrichia capensis).
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1992 Charles A. Dana Award
San Fernando Valley | Fernando Botero | Fernando Alonso | San Fernando | Fernando de Noronha | San Fernando, Trinidad and Tobago | Fernando de la Rúa | Fernando Henrique Cardoso | Fernando Arrabal | Fernando Álvarez de Toledo, 3rd Duke of Alba | Fernando de la Mora | San Fernando del Valle de Catamarca | San Fernando, California | Fernando Po | Fernando Perez | Fernando González | Fernando Saunders | Fernando Hierro | Fernando Flores | Fernando Ferrer | Fernando Amorsolo | Fernando Álvarez de Toledo | San Fernando, Pampanga | Fernando Vicente | Fernando Perez (baseball) | Fernando Ortega | Fernando Meirelles | Fernando Collor de Mello | Fernando | Fernando Valenzuela |