178 APPENDIX. 
but lays its one egg on the ground amongst or possibly beneath the large 
rock-masses which encumber the shore after falling from the overhanging 
cliffs and precipices. The parent birds are exceedingly averse to leave their 
eze when incubation has commenced, and like some other Species already 
mentioned, will rather suffer themselves to be removed by the hand. The 
egg is white lightly tinged with blue, a little spotted and veined with rust 
colour. 
