I20 BROOKLYN IXSTITUTK :\IUSEl':\I. SCIKNCE Bri.LETIN 2. 5- 
the oldest of which seemed to 1)l' half-:j,n>\vn."= Some of the nests held 
one egjj; and one chick, and amon;j, the further a(l\ aneed families there 
was a i;reat difference in the si/e of the two chicks due to the discre]iancy 
in their dates of hatcliin.L;, which sometimes amounted to four days. Not 
infrei|uentl\ the senior chick was fnll\ twice as larsj;e as its nest-mate. 
Nests which contained nothini;' hut one yoinii;ster were also very 
numerous ; donlitless the skuas, which were e\-er exeint; the rooker\' from 
jioints of \-antage round about, had accounted for the other. 
The >-oungsters are fed from the crops of the old liirds and grow 
ver>- rapidl\-, earh de\elo]iment showing; es])eciall> in the abdominal part 
of the bod\ . Within three or foin- da\-s of hatching, the chicks become 
veritably anchored in the nest l'\ the weight of their corpulent bellies 
which .seem out of all i)roportion to the jmny neck and wings, and the 
soft, insufficient legs. Within these distended stomachs I found dis- 
integrated crustaceans, small cephalopod beaks, and pebbles. The only 
identifiable food material found in the alimentary tract of adults was 
exam]iles of the pelagic, my.sidaceous shrimp, Antanioinysis maxima. 
On IV-cend)cr 20 nian\- of the xonng jienguins were half-grown, 
although a good ]>ro]iortion of nests still contained eggs. B\' January 
10 only one nest in a))ont thirt\- held eggs, and on Januar\- 24 no eggs 
remained excejiting a \er\ few addled sets still co\'ered 1)\' the ])atient 
parents. 
By the middle of Januar\ the young were mostl\- two-thirds grown, 
and their incessant chattering could lie heard a long wa> from the 
rookeries. The older youngsters walked about in an uncertain, wobbly 
fashion, tagging after their fathers and mothers and trumjieting nervou.sly 
when left too far behind. When I walked among the nests, all but the 
\-oungest chicks left them ami herdcil together. The lirooding adults, 
too, rushed awa\ , l)Ut a few s(|ueaks from the abandoned little ones 
usuallx brought them fxick, scanijiering hither and thither and swinging 
tlieir wings franticalh-. If the \oungsters happened to be old enough to 
walk, the parents coaxed them along li>- giving small tastes of food, with 
promises of more, but in li\stericai fasliion the\ would soon forget to 
wait for their feeble babies, and would liaxc to be calle.l back reiieatedly. 
The youngsters, e\en when \er\ large, are fond of snuggling as clo,sel\- 
as possible against their jiarents. 
When caught in the hand, the nedglings strike with their liarnde.ss 
little wings and attempt to bite, at the same time protesting with high- 
