This suggests relationship to A. atrifuscus of Samoa, as noted by Mayr (1942a:6).
Only part of his collections have been reported on by Mayr and his associates.
In addition, call notes have become varied, as noted by Chapin (in Mayr, 1942b:54).
He studied further, on Mayr's recommendation, with Padre Martini.
Not always have I agreed with Mayr's assignments of species to these categories, and such differences are noted.
For purposes of discussion these birds are arranged in these three categories, following the system used by Mayr (1945a).
These have been redesignated under three specific names by Mayr .
The two known specimens are in Leningrad, and Mayr sent examples of Porzana tabuensis there for comparison.
According to Mayr and Hebra, it is of the precise color which is obtained by adding a little yellow or brown to a red pigment.
Mayr (1945a:37) remarks that the bird is an occasional migrant through Micronesia.