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Transcription
Hackman, C.D.
1967
Species Account
Blue-footed Booby (Sula dactylatra)
March 19 Laysan Island
Two birds were loafing along the northern beach
at 10 am. No nests were found around the beach
crest. Only 1 nest was found on the entire island
although the east + southern portion of the island
were not carefully surveyed due to lack of time. No
roosting club was found or seen.
March 20 Lisianski Island
Nesting along the beach crest around entire island.
None observed in the interior of the island. Partial count
of the beach crest for 1/3rd of the island (made while tagging
seals + turtles): female
Adult female with:
2 eggs - 27 (one with a pyopied egg)
1 egg - 10
1 egg+1 chick - 0
Adult male with:
2 eggs - 10
1 egg - 5
1egg+1chick - 3
Unknown nests not checked - 14/11/11
One large downy chick and four small downy chicks were
observed. Four nests were found with small naked chicks, of what
contained 2 naked chicks - just hatched today.
March 21-23 Southeast Island, Pearl + Hermes Reef
Sixteen nests found:
AM 2 eggs: 4
AM 1 egg - 1
AF - 2 egg - 7
AU - 2 eggs 4/16
No chicks were observed.
Hackman, C.D
1967
Species Account
Blue-footed Booby (Sula dactylatra)
March 22 Grass Island, Pearl + Hermes Reef
One bird observed on island. No nests.
March 22 Seal Island, Pearl + Hermes Reef
23 nests as follows:
AF on 2 eggs - 12
AF on 1 egg - 2
AM on 2 eggs - 3
AM on 1 egg - 2
AU unknown contents - 4
No chicks were hatched. All birds were on open
coral sand or in coral rubble away from vegetation.
March 22 Kittery Island, Pearl + Hermes Reef
Close nests were observed but not checked for contents. No
chicks were observed. All nests were on sandy land.
March 25 Eastern D., Midway Atoll
Several nesting in a restricted entry area. The nests
were not checked for content.
March 26-30 Green D., Line Atoll
22 birds observed in antenna field-many of these
nesting. Birds were difficult to work in the full moonlight..
The bird one handled but through the glove + located a ship
stopping all handling for the night (28 March)
(27 March) Checked nests + measured eggs in South Antenna field
March 28 Worked all the birds in the North Antenna field.
None that were observed escaped - the birds seemed reluctant to
fly for some reason. Captured + marked 18 returns.
During the day the nests were surveyed in this area and in the
south antenna field and found 13 nests in both areas as follows:
South Antenna field:
AM 2 eggs - 3
AU - 1 egg 1
AF - 2 eggs 1
AF 1 egg - 1/6 eggs + 1 immature