Wanstead El Viso Mumao Grindul Lupilor Hohenau-Ringelsdorf Portalban (Wald) Portland Bird Observatory Kanas National Nature Reserve The Ecological Register
global
North America
United States
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Carduelis carduelis (bird): 8 samples
Standardised estimates are produced by subsampling and then extrapolating.
Raw richness may be higher when an abundance distribution is uneven.