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 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.
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
Every year redwings are among the park’s winter visitors; we are their winter migration’s destination.
Continue readingAnalysis 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”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 parkās migratory birds. Why do such tiny birds fly so far and take such risks to do it?
Continue reading “Willow warbler 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”The British Trust for Ornithology has been collecting data about the migratory behaviour of blackcaps.
Continue reading “Blackcap”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.
Every year redwings are among the park’s winter visitors; we are their winter migration’s destination.
Continue readingMost 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 parkās migratory birds. Why do such tiny birds fly so far and take such risks to do it?
Continue reading “Willow warbler migration”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.
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
The record breaking swifts are back from their winter feeding grounds.
Continue reading “Record holders”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”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.
Most of our swallows have left by this time of year; Britain’s swallows overwinter South Africa.
Continue readingAll our willow warblers will have left by now; they are on their way to sub-Saharan Africa where they will spend their winter. Theirs is the longest journey undertaken by any of the parkās migratory birds. Why do such tiny birds fly so far and take such risks to do it?
Continue reading “Willow warbler migration”Back from our Christmas break with an interesting tidbit of scientific discovery from 2018.
Continue reading “Migration”