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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                                

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