This 2010 video from Britain says about itself:
Simon King is in Dorset where he is on the hunt for the UK’s rarest snake, the smooth snake (Coronella austriaca).
In 2007, various rare plants and animals were observed in nature reserves in the Netherlands.
– Whiskered bats. 11 of them in Fort Spijkerboor
– Yellow centaury: 20 to 30 flowering on Schiermonnikoog island
– Smooth snakes are back in the Bergherbos; four were seen at the same time
– Great reed warblers are back as a breeding species in Eemland
– Great egret: over a hundred birds sleeping in Botshol
– Great crested newt: in nearly all ponds in Op Hees
– Silver washed fritillary: July 3 in Zuid-Kennemerland
– Eurasian treecreeper: 2 couples in the Haagse Bos
– Slime mould: a new species for the Netherlands, found on a beech tree in Enzerinck
– Scarce blue-tailed damselfly: seen at Berkenbosje near Haarzuilens
– Sea eagle: 2 young birds for over 2 months in Zuid-Kennemerland
– Stripe-winged grasshopper: was seen and heard in the Velhorst
Source: report on 2007 of Dutch conservation organization Natuurmonumenten.
Butterflies in the Netherlands, spring 2008: here.