100 
PACIFIC SCIENCE, Vol. V, January, 1951 
TABLE 2 (Continued) 
Foods of the Lace-necked Dove in Hawaii 
NUMBER 
NUMBER 
PER- 
OCCUR- 
OCCUR- 
ABUNDANCE OF FOOD BY VEGETATION ZONE* 
SPECIES AND PARTS EATEN 
CENTAGE 
RENCES 
RENCES 
CROP 
IN 146 
IN 71GIZ- 
VOLUME 
CROPS 
ZARDS 
A 
B 
Cl 
C 2 
Di 
D2 ‘ 
D 3 
El 
E2 
ANIMALS 
0.5 
Megacerus alternatus, pea weevil; 
adult 
0.2 
10 
0 
Carpophilus humeralis, yellow- 
shouldered souring beetle; 
adult 
0.2 
3 
2 
Carpophilus hemipterus, dried fruit 
beetle; adult 
Antonina graminis, scale insect; 
0.1 
3 
2 
fragment 
T 
2 
0 
Blattidae (unidentified), cock- 
roach; egg case 
Cirphis unipuncta, army worm; 
T 
7 
0 
larva 
Coccidae (unidentified), scale 
T 
1 
0 
insects; adult 
T 
1 
0 
Coleoptera (unidentified), 
beetles; adult 
Conoderus exsul, wireworm; larva. 
T 
1 
0 
pupa 
Crustacea (unidentified), Cray- 
T 
4 
0 
fish; chitin 
T 
,1 
0 
Lepidoptera (unidentified), but- 
terflies, moths, skippers; larva 
Mollusca (unidentified), aquatic 
T 
1 
0 
snail; shell 
Rodentia (unidentified), rodent; 
T 
1 
0 
tooth 
T 
1 
0 
general distribution is only occasional in 
zones B and Ci, it grows very profusely during 
all seasons in certain areas, particularly in 
fallow pineapple fields and along roadsides. 
Lace-necked Doves show a preference for the 
large seeds, and concentrations of feeding 
birds occur where this plant is abundant and 
in seed. 
Waltheria americana L., or uhaloa, compri- 
sing 17 per cent of the entire diet, ranks as an 
important food. Its seeds occurred in 57 (39 
per cent) of the crops and 27 (38 per cent) 
of the gizzards. Uhaloa grows occasionally in 
zones A and C 2 but commonly in B and Ci. 
This exotic member of the Sterculiaceae ap- 
pears to produce seeds abundantly through- 
out the year. Widely available in arid sections 
at low elevations, this plant apparently plays a 
prominent role as a food in these regions 
where seed productivity is otherwise low. We 
also found uhaloa to be an important food 
of the Barred Dove and the California Quail 
{Lophortyx calif ornica) in Hawaii. 
Cajanus Cajan (L.) Millsp., pigeon pea, 
constitutes 12 per cent of the Lace-necked 
Doves’ food. Twenty-one (14 per cent) of 
the crops and 4 (5 per cent) of the gizzards 
contained these seeds. This exotic legume is 
rare in zones B, C 2 , and Di, but occasional in 
zone Cl, where it occurs chiefly as cultivated 
cattle forage. Seeds are available throughout V 
the year. 
