Eurasian blackcap migratory patterns are changing: before 1970 very few blackcaps spent the winter in the UK but they are now common winter visitors.
Continue reading “Blackcap”Goldcrest
During all that rain, Ian spotted a goldcrest by the wooden footbridge into Village Green. Goldcrests are Britain’s smallest bird; a tiny flash of yellow against the dark green of a pine tree.
Continue reading “Goldcrest”Chiffchaff
Our chiffchaffs will already have started the long journey back to their breeding sites in the reserve.
Continue readingWillow warbler migration
Most of our willow warblers will have left by now; they will be on their way to sub-Saharan Africa where they will spend their winter. Theirs is the longest journey undertaken by any of the park’s migratory birds. Why do such tiny birds fly so far and take such risks to do it?
Continue reading “Willow warbler migration”Large white
The record breaking painted lady is not the only British butterfly that migrates over long distances.
Continue reading “Large white”Painted Lady
A pristine painted lady, fresh from the chrysalis, feeding on bramble flowers in the reserve yesterday.
Continue readingRecord holders
The record breaking swifts are back from their winter feeding grounds.
Continue readingSwallows, swifts and martins
The swallows, house martins and swifts have all returned now and are hunting for winged insects over the reserve. Here is a short video to help you tell the three species apart.

The house martins are back
Continue readingChiffchaff
Our chiffchaffs will already have started the long journey back to their breeding sites in the reserve. They have overwintered in the warmth of southern Europe or northern Africa and are making their way home in a leisurely way with lots of stops for fuel. The males are the frontrunners and they need to arrive fit enough to find and fight for a territory.
They will begin arriving in March; their song (chiff-chaff, chiff-chaff) is one of the first signs of spring.


Pictures take in the reserve by DKG
Redwing
Every year redwings are among the park’s winter visitors; we are their winter migration’s destination.
Continue readingMigration changes
Analysis of records kept since 1964 has found that some species of European migratory birds are spending up to 60 days less each year in their sub-Saharan wintering grounds. Over the most recent 27-year period, migratory birds, including the whitethroats commonly seen in our reserve, were found to have increased their time in Europe by an average of 16 days. It has even been suggested that some species may stop flying south for the winter altogether.
Continue reading “Migration changes”Willow warbler migration
Most of our willow warblers will have left by now; they will be on their way to sub-Saharan Africa where they will spend their winter. Theirs is the longest journey undertaken by any of the park’s migratory birds. Why do such tiny birds fly so far and take such risks to do it?
Continue reading “Willow warbler migration”World record butterfly
Longest butterfly migration
We now know the painted lady (Vanessa cardui), seen in the reserve in the summers of 2019 and 2020, makes the longest migration of any butterfly: 9,000 miles from tropical Africa to the Arctic Circle, almost double the journey made by the previous record holder, the famed monarch butterfly.
Continue reading “World record butterfly”Blackcap
The British Trust for Ornithology has been collecting data about the migratory behaviour of blackcaps.
Continue reading “Blackcap”The house martins are back
Continue readingReturning chiffchaffs
Has anybody heard our chiffchaffs yet? This is the time of year when they come back from the Mediterranean and Africa to nest in the park and their unmistakeable call is a welcome sign that spring is here. Message or email us if you have heard them .
All these pictures were taken in the park by DKG.
Redwing
Every year redwings are among the park’s winter visitors; we are their winter migration’s destination.
Continue readingWillow warbler migration
Most of our willow warblers will have left by now; they will be on their way to sub-Saharan Africa where they will spend their winter. Theirs is the longest journey undertaken by any of the park’s migratory birds. Why do such tiny birds fly so far and take such risks to do it?
Continue reading “Willow warbler migration”Swallows, swifts and martins
All summer long, swallows, house martins and swifts have hawked and hunted for winged insects over the park. The swifts have already begun their migration, the swallows will leave next and the house martins will go last of all.
Here is a short video to help you tell the three species apart.
Another world record
Longest butterfly migration
We now know the painted lady (Vanessa cardui) makes the longest migration of any butterfly: 9,000 miles from tropical Africa to the Arctic Circle, almost double the journey made by the previous record holder, the famed monarch butterfly.
It can take six successive generations of painted ladies to complete this epic journey, flying up to 1,500ft high and reaching speeds of 30mph. The butterflies that return to Africa at the end of the year are several generations removed from those that set out.
This astonishing and beautiful butterfly, spotted in the park for the first time last year, will begin arriving in Britain this month. Keep a look out for it.
Pictures (CC0) from pixabay.com
Record holders
The record breaking swifts are back from their winter feeding grounds.
Continue reading “Record holders”The house martins are back
Continue readingGoldcrest
Last week there was a report of a pair of goldcrests in the conifers by the path at the top of Simpson’s Field. Goldcrests are Britain’s smallest bird; a tiny flash of yellow against the dark green of a pine tree.
Continue reading “Goldcrest”Returning chiffchaffs
Has anybody heard our chiffchaffs yet? This is the time of year when they come back from the Mediterranean and Africa to nest here and their unmistakeable call is a welcome sign that spring is here. Message or email us if you have heard them .
All these pictures were taken in the park by DKG.