Survey timing

jan

feb

mar

apr

may

jun

jul

aug

sep

oct

nov

dec

habitat / vegetation

Phase 1

Phase 1/ NVC

Phase 1

fungi

early species only

birds

breeding

migrants

winter species

badgers

bait marking

sett survey

badger licences

bats

hibernation roosts

activity surveys (internal inspections all year)

hib. roosts

dormice

nut search

nest and nest tube surveys

nut search

water voles

potentially limited by vegetation cover

otters

reptiles

great crested newts

aquatic survey

terrestrial survey

invertebrates (land)

invertebrates (water)

white-clawed crayfish

optimum survey period

sub-optimal survey period

survey not recommended