Getting a head start: diet, sub-adult growth, and associative learning in a seed-eating passerine.

Growth of skeletal dimensions and mass Males reared and maintained on HI diets were larger in all traits (head width, tarsus length, body mass) across all ages, although the diet treatment effect for tarsus length was marginally significant ( Table 1 ).

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Measurement repeatabilities [59] were calculated for approximately 20 birds at each age by scoring individuals on successive days; all such repeatabilities exceeded 0.93 and were highly significant (p's<.001).

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