Wild Beijing · nocturnal bioacoustic survey

Lingshan: a season of nights

84
confirmed bird species
4
mammal species
78
survey nights
903
recordings
Nightly species richness
Nightly species richness from 28 March to 13 June 2026.
Total taxa (birds + mammals) Birds only
Night activity clock
Night activity clock
Hover over a segment
to explore activity by hour of night
Not recorded
1–5 species
6–15 species
16–30 species
31+ species

Midnight at top, time runs clockwise. Each segment shows how many distinct bird species were recorded in that hour across all 78 survey nights. The recorder ran from sunset to one hour after sunrise — daytime hours are absent by design.

Species recorded
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