. The animals of New Zealand; an account of the dominion's air-breathing vertebrates . erally preferring, whenanything good to eat is under water, to let a brown petrel fish itup. It gives chase, and, running along the top of the watercroaking and with outstretched wings, it compels the petrel todrop it, and then seizes it before it sinks again. When caughtand brought on board, the bird stands pretty firmly on its legs,and does not vomit oil, as most of the petrels do. 278 THE ANIMALS OF NEW ZEALAND The White-capped Mollymawk. Thalassarche hulleri. Head and neck, pale grey; a dark patch in fro
. The animals of New Zealand; an account of the dominion's air-breathing vertebrates . erally preferring, whenanything good to eat is under water, to let a brown petrel fish itup. It gives chase, and, running along the top of the watercroaking and with outstretched wings, it compels the petrel todrop it, and then seizes it before it sinks again. When caughtand brought on board, the bird stands pretty firmly on its legs,and does not vomit oil, as most of the petrels do. 278 THE ANIMALS OF NEW ZEALAND The White-capped Mollymawk. Thalassarche hulleri. Head and neck, pale grey; a dark patch in front of the eye. Back,wings, and anterior margin of their lower surface, sooty brown. The restof the body, white. Bill, blackish horn colour, with the upper and lowermargins yellow; the jellow of the upper margin expanding in front and behind the nostril there is a narrow band of blackmembrane, which does not quite reach the base of the bill. Legs and feetyellow. Length of the wing, inches; of the tarsus, at the Snares towards the end of II Aiirldfiml Mauds.) iri„i,Mollyiuawks on Nest. The Grey-headed Mollymawk. Thalassarche culminaius. The colours are the same as in the last species; but the yellow on theupper margin of the bill narrows slightly behind the nasal tubes, and the THE YELLOW-NOSED MOLLYMAWK 279 black membrane behind the tubes is much broader, the two from eachside just meeting at the base of the bill; also there is no blackish markin front of the eye. Length of the wing, 20 inches; of the tarsus, In the yonng- bird the bill is entirely dark, and the head, neck,and lower surface are brown. It is not uncommon on the coastsof New Zealand, but its breeding-place has not yet been ascer-tained.
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