-----------------+----+--------+-------+-------+-----------+----------- | | | | |Exposed | SUBSPECIES | No.| Sex | Wing | Tail |culmen | Tarsus -----------------+----+--------+-------+-------+-----------+----------- | | | | | | _A. l. luscinia_ | 11 | males | 84 | 83 | 36.0 | 30.5 | | |(81-86)|(80-86)|(35.5-39.0)|(30.0-31.0) | 1 | female | 78 | 73 | 37.0 | 28.5 | | | | | | _A. l. syrinx_ | 31 | males | 78 | 71 | 26.5 | 26.5 | | |(76-80)|(68-75)|(25.0-27.0)|(25.0-29.0) | 12 | females| 75 | 68 | 25.5 | 26.0 | | |(74-78)|(65-70)|(24.0-27.0)|(24.0-26.0) -----------------+----+--------+-------+-------+-----------+----------- Immature: Resembles adult, but upper parts duller and more brown and less olive; underparts less yellow; wing and tail feathers lighter brown. _Measurements._--Measurements are listed in table 37. _Weights._--The weights of three adult males obtained at Guam by the NAMRU2 party are 30, 30, and 31 grams. An adult female from Guam weighed 27 grams. _Specimens examined._--Total number, 12 (11 males, 1 female), as follows: Mariana Islands, USNM--Guam, 6 (June 2, 13, July 2, 18)--Saipan, 6 (Sept. 27, 30). _Nesting._--Oustalet (1895:209) writes that Marche found nests at Guam in June, 1887. The NAMRU2 party obtained two males with enlarged gonads in June, 1945. _Molt._--Specimens taken in June, July, and September are either in worn plumage or in molt. Birds in worn plumage become a faded straw-brown above. Oustalet apparently interpreted this coloring of the worn plumage as a seasonal coloration. _Food habits._--Seale (1901:53) reports that four stomachs which he examined contained insects and larvae. Marshall (1949:21) lists as food items: lizards, snails, spiders, and insects.