NO. 9 BIRDS OF ISLA COIBA, PANAMA—WETMORE 9 
Family Sutipae: Boobies 
SULA LEUCOGASTER ETESIACA Thayer and Bangs: Brown Booby, 
Piquero Moreno 
Sula etesiaca THAYER and Banos, Bull. Mus. Comp. Zool., vol. 46, June 1905, 
p. 92. (Gorgona Island, Colombia.) 
Single birds or couples cruised regularly over the sea, sometimes 
near the shore but more often half a mile or more from land. Usu- 
ally they coursed with set wings in the stiff breeze, low over the 
water, rising at intervals to 30 or 40 feet in the air. It was usual 
to have them approach our cayuco when we crossed the bays, but 
then to veer away to continue their fishing. All those observed were 
in adult plumage. 
They were noted commonly over the sea between Taboga Island 
and Punta Mala during the journeys to and from Coiba. Fishermen 
and boatmen in these waters usually called this bird piquero, a name 
that applies properly to another species of the family, Sula variegata, 
which is one of the important species of the guano islands of Pert. 
They are also known as bobito. 
Family PHALACROCORACIDAE: Cormorants 
PHALACROCORAX OLIVACEUS OLIVACEUS (Humboldt): Olivaceous 
Cormorant, Pato Cuervo 
Pelecanus olivaceus Humpo.pt, in Humboldt and Bonpland, Recueil d’observa- 
tions zoologie et d’anatomie comparée, vol. 1, livr. 1, 1805, p. 6. (El Banco, 
Magdalena River, Colombia.) 
Birds, mainly in immature dress, were present daily along the 
shores of Bahia Damas, where they fished in little groups in the 
shallows bordering the beach when the tide was full, or joined the 
pelicans farther out when schools of fish appeared. Otherwise they 
rested on the rock exposures near the waterline. Few adult birds 
were recorded. 
When Dr. Charles W. Richmond established the scientific name of 
this bird, he was under the impression that the citation above was a 
later print of the work concerned, and that the description of this 
cormorant was to be listed from the same title with the same year, 
but on page 47 instead of on page 6. In this he was in error as the 
listing given is the original that immediately seems to have been 
included, with a few modifications, in the great series of 24 volumes 
covering the voyage and observations of Humboldt and Bonpland. 
