Patterns of contribution to citizen science biodiversity projects increase understanding of volunteers' recording behaviour.

Green conservation status bird species (species with the lowest conservation priority) were more recorded than amber (higher conservation priority) or red status (highest conservation priority) although the relationship was not quite significant at the 0.05 level for iRecord: GiGL, F (1,227) = 10.4, p < 0.001; iSpot, F (1,126) = 6.7, p < 0.001; iRecord, F (1,71) = 2.9, p = 0.06.

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