Other Species Surveys

Surveys include:

  • Beaver
  • Barn owl
  • Roman snails
  • Invertebrates (including butterflies and dragonflies)
  • White-clawed crayfish
Key
Optimal
Sub-optimal
Not Recommended
SpeciesJanFebMarAprMayJunJulAugSepOctNovDec
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