bird survey
C34793
concept
A bird survey is a systematic study that records the presence, abundance, and distribution of bird species within a defined area and time period.
All labels observed (1)
| Label | Occurrences |
|---|---|
| bird survey canonical | 2 |
Instances (2)
| Instance | Via concept surface |
|---|---|
| Big Garden Birdwatch | — |
| Audubon Christmas Bird Count | — |