Hackman, C.D. 1967 Great Frigatebird (Fregata minor) March 20 Lisiaroli Island All nests in Scaevola, 15" to 34" high. Nest diameter 12"-18". Construction almost exclusively of Trichilia with occasional pieces of Portulaca + Boerhavia. Egg measurement Sx incubating Condition of egg 46.35 x 68.2 mm male fresh. 46 x 82.1 mm male opaque shape: o 49 x 73.4 mm female fresh 49.95 x 70.55 mm male opaque 45.9 x 68.3 mm female fresh 50.8 x 70.6 mm male --- 46.5 x 73.8 mm female --- 47.6 x 67.7 mm female fresh 47.5 x 69.55 mm male fresh 47.35 x 70.25 mm male opaque 46.5 x 70.1 mm male fresh 45.3 x 70.4 mm male fresh 45.1 x 68 mm male fresh 47.6 x 73.85 mm male opaque 47.85 x 68.5 mm male fresh 47.4 x 67.5 mm female fresh 50.5 x 73.6 mm female opaque 49.55 x 69.3 mm male fresh 47.35 x 69.2 mm unknown fresh 47.65 x 69.0 mm unknown opaque Eggs were candled against the unshaded sun. Fresh eggs appeared pinkish in this light. Hackman, C.D. 1967 Grey-backed Tern (Sterna baurata) March 20 Lisiaroli Island All nests under Scaevola and morning glory on sandy soil all measurements in millimeters: 33.5 x 46.4 all eggs were in slight depressions 31.5 x 43.9 in sandy soil. 32.5 x 44.7 32.8 x 46.2 33.1 x 48.7 33.65 x 47.35 32.9 x 43.15 33.5 x 46.2 33.75 x 48.65 32.9 x 42.55 egg broke - barely incubated 32.15 x 45.35 33.8 x 45.45 32.15 x 46.15 33.4 x 43.15 33.6 x 47.35 34.1 x 42.55 32.95 x 46.2 33.0 x 46.9 31.25 x 43.4 32.7 x 45.65