_Specimens examined._--Total number, 96 (50 males, 38 females, 8 unsexed) as follows: Mariana Islands, USNM--Guam, 29 (Mar. 18, April 4, 17, May 20, 28, June 2, 9, 13, 14, 15, 20, 23, 24, 27, 28, July 2, 6, 10, 23, Aug. 11, 21)--Rota, 6 (Oct. 20, 22, 25, 26, Nov. 1, 2)--Tinian, 4 (Oct. 24, 26); AMNH--Guam, 40 (Jan. 17, 30, Feb. 12, 20, March 3, 5, 7, 11, 13, 23, April 13, 19, June 13, 15, July 10, 25, Aug. 4, 10, 11, 13, 15, 18, 20, 21, 22, Sept. 4, Dec. 26, 30)--Tinian, 8 (Sept. 7, 10, 11, 12, 13)--Saipan, 6 (July 13, 15, Aug. 24, Sept. 7, 8)--Asuncion, 3 (Jan. 18, Feb. 7, June). _Nesting._--The NAMRU2 party found the ground dove nesting at Guam in the winter and spring months beginning in late January. Nests were observed in tall trees, many of which were well isolated from other trees and vegetation. On February 10 a nest was discovered in a breadfruit tree near one of the NAMRU2 barracks on Oca Point. It was approximately 50 feet above the ground. On February 26 I found pieces of egg shell beneath the tree. Occasionally during the day, the male, but never the female, was observed sitting on this nest. On February 10, a dove (the male) was observed building a nest in a large banyan tree at Oca Point. Another nest was being constructed by a female on March 7. On March 17 a young female dove, just beginning to fly, was taken; another was found on April 3. Adult birds with enlarged gonads were taken in April, May, June, and July. Marche, according to Oustalet (1895:224), obtained eggs in May, 1887. _Food habits._--Stomachs of doves taken at Guam contained fruits and fruit parts. On March 9, a dove was observed feeding on the berries of the shrub known as "inkbush." This appeared to be a favorite food. Seale (1901:42) also mentions that this berry is a preferred food. _Parasites._--Wharton (1946:174) lists the chigger (Acarina), _Trombicula_ sp., from the ground dove at Guam.