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. 2011 Jun 8;279(1727):326–333. doi: 10.1098/rspb.2011.0842

Figure 4.

Figure 4.

Colour-dependent novel object exploration of adult mallards during round 2 (familiar environment) as a function of developmental immune treatment and object colour. Proportions are presented with 95% confidence intervals. EARLY birds tended to avoid green more often than CONTROL birds, while MIDDLE birds avoided red and approached orange objects more often than CONTROL individuals (*p<0.05). There was no difference in colour-dependent novel object exploration between LATE and CONTROL birds.