
Other Species Surveys
Surveys include:
- Beaver
- Barn owl
- Roman snails
- Invertebrates (including butterflies and dragonflies)
- White-clawed crayfish
Key
Optimal
Sub-optimal
Not Recommended
| Species | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Badgers | Surveys can take place at any time of year (vegetation limits visibility in summer; activity above ground in winter) | |||||||||||
Bats - Initial | Initial bat roost assessment of buildings and trees can take place all year; winter months preferable for trees | |||||||||||
Bats - Roosting | Hibernation surveys only | Transition roost surveys | Dawn / Dusk Bat presence / Likely absence surveys and activity surveys. Multiple visits spaced across the season | Mating roost surveys | Hibernation surveys only | |||||||
Birds - Breeding | Multiple visits spaces across the season | |||||||||||
Birds - Wintering | Multiple visits across the season | Multiple visits across the season | ||||||||||
Botanicals | Mosses, liverworts and lichens only | Surveys for higher plants and ferns. Timing varies depending on habitat | Mosses, liverworts and lichens only | |||||||||
Dormice | Nest tube surveys: multiple visits between April and November | |||||||||||
Great Crested Newts - HSI | Initial Habitat Suitability Index (HSI) surveys can take place at any time of year | |||||||||||
Great Crested Newts - eDNA | eDNA surveys: Apr - Jun. std survey: multiple visits between Mar - Jun (core period mid-Apr to mid-May) | |||||||||||
Invertebrates | Multiple visits required throughout season, timings will vary between species | |||||||||||
Prelim Appraisal / Habitats & Vegetation | ||||||||||||
Otters | Surveys can take place at any time of year (although weather and vegetation cover may be limiting factors) | |||||||||||
Reptiles | Multiple visits spaced across the season | Multiple visits | ||||||||||
Water Voles | First visit required April - June; Second visit July - September | |||||||||||