
TY  - JOUR
A1  - Woinarski, JCZ 
T1  - Small birds, Lerp-feeding and the problem of Honeyeaters
JF  - Emu
JO  - EMU
Y1  - 1984
VL  - 84
IS  - 3
SP  - 137
EP  - 141
KW  - 
UR  - https://doi.org/10.1071/MU9840137 
N2  - Honeyeaters often defend rich sources of carbohydrates such as nectar and lerps (exudates of psyllids). Lerps are also a major food item of pardalotes, and consequently these birds are attacked frequently by honeyeaters, especially in winter and spring. Up to 5% of daylight time and 9% of energy expended may be wasted by pardalotes escaping from honeyeaters. This susceptibility to attack may have been influential in the development of hole-nesting by pardalotes and may have deterred other small foliage-gleaning birds from eating lerps. 
ER  -

