National Geographic : 1967 Apr
EKTACHROMES BYALANROOT Dancing the booby hop, a female resident of Espafiola marks time on a rock (from far left) in response to the attention of a male. Rocking from side to side, the blue-footed booby alternately lifts each foot, showing off the handsome color, while her partner spreads his wings and whistles. In a symbolic nest building, they exchange debris. Larg er pupils identify the female in these photographs. The couple makes its home on bare ground and cuddles affectionately (below) until eggs are laid. 573 N.G.S.