SIMPER (similarity percentages) analysis of bird species that contributed ≥ 4.5% to the Bray-Curtis indices of dissimilarity between avian assemblages at urban and rural bird baths during the winter survey.

Proportion occurrence represents the proportion of bird baths at which a given species was recorded.

出现比例（Proportion occurrence）指的是记录有某一特定物种的鸟浴盆（bird baths）在所有鸟浴盆中所占的比例。