Updated India Index Estimated a 170.7% Long-term Increase for Yellow-footed Green-Pigeon

The 2025 interim update to State of India’s Birds, released on 6 May 2026, estimated that the national abundance index for yellow-footed green-pigeon (Treron phoenicopterus) was 170.7% higher over the long term than the pre-2000 baseline.
The updated current annual trend was also positive, at +3.4% per year. Both updated estimates clearly supported an increase. State of India’s Birds estimated the species’ distribution range in India at 1,709,660 km².
The update used 48 million bird observations
State of India’s Birds uses complete bird lists submitted to eBird to calculate an abundance index based on frequency of reporting. The trend values therefore describe change in this index rather than a direct count of individual pigeons.
The 2025 update was based on about 48 million observations available through 31 May 2025, compared with 30 million in the 2023 assessment. It also used an improved procedure for estimating uncertainty and a more robust subsampling method.
Numerical estimates changed, but the assessment categories did not
The interim update recalculated the numerical values for distribution range, long-term trend and current annual trend for 942 species. It did not revise the categorical assessments that had been assigned in the 2023 report. This means the new numbers provide a more recent estimate of the magnitude of change without constituting a new conservation-category assessment.
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