| Field | Value | | ----- | ----- | | **ID** | day_night | | **Label** | Period of day observed | | **Definition** | [pollination networks only] Were observations made during the day, during the night, or both? | | **Datatype** | DAY / NIGHT / BOTH | | **Metadata level**| `NETWORK` | | **Examples** | | | **Controlled vocabulary** | |