BirdAnalyst
Family · Threskiornithidae · Pelecaniformes

Ibises & Spoonbills Population Trends

4 species tracked, ordered by long-term trend. Steepest declines first.

Ibises & Spoonbills species ranked by population trend.
TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Glossy IbisWetland birds-17%1968
White IbisWetland birds-14%1968
Roseate SpoonbillWetland birds+196%1969
White-faced IbisWetland birds+510%1969