Calidris melanotos
 (Pectoral Sandpiper) (Correlimos
 pechirayado)
Observations: One was seen with a
Wilson's Plover at the high tide line,
in the west sector of Wafer Bay, the
afternoon of the 26h. The first record
of this species on the island was by
Slud (1967) in April 1963.
 Larus atricilla
 (Laughing Gull) (Gaviota reidora)
Observations: One immature was
seen at Chatham Bay on the 26th.
This species was first recorded on the
island in February 1963 (Slud, 1967);
these were two specimens in winter
plumage. Since 1988 there have been
numerous photographic records of
this species, always in first or second
year plumage.
 Larus pipixcan
 (Franklin's Gull) (Gaviota de
 Franklin)
Observations: One mature breeding
adult was seen on the coastline at
Wafer Bay on the 26h. There is only
one previous record, by Slud (1967)
on 23 April 1963 at Wafer Bay.
 Anous minutes
 (Black Noddy) (Tiosa negra)
 Anous stolidus
 (Brown Noddy) (Tiosa comn)
Observations: Individuals of both
species were observed during
circumnavigations of the island. We
saw them roosting on islets and rocks
without vegetation and on various
occasions flying and foraging in
coastal waters. Hundley (1962) and
Slud (1967) made extensive reviews


of the presence and behavior of these
species on the island.
 Gygis alba
 (White Tern) (Charrn blanco)
Observations: We made numerous
sightings of adults and immatures
both along the island's trail system as
well as during circumnavigation.
These birds deposit their eggs on
natural depressions in the branches of
the palm Euterpe precatoria without
the aid of nesting material. The
presence of this species on the island
is from the end of February until the
middle of September. Slud (1967)
made a series of observations of this
species on the island.
 Coccyzus ferrugineus
 (Cocos Cuckoo) (Cuclillo de la isla
 del Coco)
Observations: One was seen briefly
but well on Chatham-Wafer trail
above Wafer Bay on the 26th. A Pair
were seen and observed at close
range at the beginning of Chatham
trail, for at least 10 minutes on
morning of the 28th. Slud (1967)
remarks on observations of this
endemic species.
 Nesotriccus ridgwayi


Coccyzus ferrugineus