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Fig. 3 | Avian Research

Fig. 3

From: Colour-ring wear and loss effects in citizen science mark-resighting studies

Fig. 3

Probability that an oystercatcher is reported with a worn (a) or lost (b) ring dependent on ring age and colour (theta; Table 2), and an inset graph of sample size for each age category (c). The coloured lines indicate the predicted wear or loss from the model coefficients whereas the black points indicate the actual data in relation to ring age (but independent of ring colour) with 95% error bars. The sample size in c indicates the number of observations, including both left and right leg rings for colour-ringed birds, but only a single entry for barcode-ringed birds. The analysis focused on whether an individual oystercatcher is reported with a worn or lost ring rather than an observation of which there may be multiple per year

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