A Monog raph of Marcus Island . 1 1 1 



coupled with the copious way they bleed when injured, has wou for 

 them great respect in the minds of the sailors, who will rarely harm 

 one for fear of visiting some calamity on his vessel by so doing. 

 I have carefully taken the following- measurements from the four 

 birds secured. 



Xo. Loralitv. Leui^th. Wing. Tail. Tarsus. Tor. Culmen. D.ofB. Ser. 



L>071' .Mm-cns. I's.OO 12.70 14.00 1.00 l.'.tO 2.:J0 .S5 9 



l'OT:! Mari-u.s. 2(i.00 l-.'.40 ll.tiO 1.00 l.sO 1'.40 .so ^ 



•-'071 Marcus. 12.20 13.75 1.00 1.85 2..'-)0 .00 d" 



2074 Marcus. 12.20 15.25 1.00 1.75 2.25 .00 ^ 



Sula cyanops Sunder. Blue-faced Booby. 



Only a few individuals of this species were to be .seen sitting 

 on the black rocks on the reef, and since I was not permitted to use 

 a gun, I did not secure a specimen. Earlier in the season the Jap- 

 anese had brought a young one to camp and reared it by hand, 

 feeding it on fish. It had become quite tame and showed some 

 signs of intelligence, as coming about for food when the fishermen 

 opened their catches. Picking, biting, snapping and hissing at all 

 passers-b}', it was in ever}' way a bossy, impudent nuisance about 

 camp. During a rain .storm this young booby would fl}- up into a 

 stump of a tree that formed its favorite roost, and alternatel)- flap 

 its wings and then hold them out from its bod}^ evidently greatly 

 enjoying its .shower bath. When sleeping it would perch resolutely 

 on its .stump, stand ever\' feather on end, turn its long head and 

 neck down over its back, tuck its bill under its wing, and thus be 

 lost to the scenes about for hours at a time. 



Sula piscator (Linn.). Red-footed Booby. 



None of this species was noted on the island, and but few were 

 to be seen on the reef. The la.st day w^e were on the island (August 7) 

 one of the Japanese went out and got five from off the rocks, cf 

 which I secured one, an adult male, Museum No. 2075. Its meas- 

 urements are : Length 29.50, wing 15.25, tarsus 1.25, toe 2.90, 

 culmen 3.30, depth of bill i.io. 



Sula sula (Linn.). Booby. 



On the beach underneath the trees, well above the line of the 

 liighe.st tides at the northern point of the island, were found the 

 colonies of this widely distributed "Sea Fool" or Boob}-. Thou- 

 sands of them were to be seen on the wdng, sitting on eggs, or feed- 



