Table 1.

Basic information on the six species used in this study (references are in the electronic supplementary material). Bird art by Scott Partridge.

icon in the figures	Latin abbreviation	English name	model volume as proxy for mass (mm³)	foraging behaviour
	Hal. sphenurus	whistling kite	7070	active hunter, variety of small animals, but will also feed on carrion
	Hie. morphnoides	little eagle	11 865	active hunter, feeding on mammals and birds, can catch prey exceeding own body mass
	Aqu. audax	wedge-tailed eagle	24 037	active hunter, dietary generalist, feeding on mammals, birds and reptiles
	Hie. moorei	Haast's eagle	67 807
	Aeg. monachus	cinereous vulture	64 489	obligate scavenger, ripper, medium-sized to large carcasses
	Vul. gryphus	Andean condor	31 891	obligate scavenger, gulper, medium-sized to large carcasses