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Birds migrate to find the best ecological conditions and habitats for feeding, breeding and raising their young. When conditions become unfavourable, it is time to fly to regions where conditions are better.
Most birds in colder northern countries migrate south to escape harsh winters. In temperate regions, such as the UK, about half the species migrate. For example birds that eat insects will not be able to find enough food here in winter so they fly south. While tropical birds have less need to migrate as they have a more constant food supply and conditions.
When do birds migrate?
Migratory birds generally migrate twice a year, once in autumn and again in spring. In autumn they will be flying to find a good place to spend the winter and in spring a favourable region to nest and raise their young.
PS the photo is of hundreds of winter dunlin by Portbury Wharf salt marsh.
DID YOU KNOW?
At least 4,000 species of birds migrate, that is about 40 per cent of all the world’s birds. Bird migration is a perilous business as they often have to fly hundreds or even thousands of miles.
The birds that are winging their way to Portbury Wharf in this autumn migration will be escaping the frozen north. Our winters are balmy in comparison to Iceland, Siberia and other northern latitudes!
Tomorrow, Saturday 10 October, is World Migratory Bird Day (WMBD). So this month, in celebration, we will be posting lots of stuff about migration and Portbury Wharf 's winter birds. If you have any interesting bird migration snippets you want to share please join in.
PS this photo is of a fling of dunlin. They are like shoreline starlings flocking at the tide's edge in mesmerising formations.
Portbury Wharf is a great place to visit and it is not just us human visitors that think so! It is a popular destination for our endangered winter birds too.
The autumn bird migration is one of nature's miracles. A time when shoreline birds, thrushes and more fly incredible distances across oceans and continents to escape harsh arctic winters. Some of these new arrivals will stay on the estuary edge and salt marsh as there is lots of food there. Others will prefer the pools and hedgerows on the nature reserve.
To make it through the winter they will need to feed and rest undisturbed. So we can all help by giving them plenty of space. So if we, and our dogs, keep to the main paths and don't walk across the salt marsh, they will have the best chance of survival.
This guy is a fairly regular visitor to the Reserve but i dont normally get the chance to video him at such close quarters.https://youtu.be/pHBAqWOf6y0
Well more of our wintering friends are returning and today a snipe was making his presence felt on the south pool
Join the call for a better future!
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Nature is in crisis and we need Government action. I’ve signed the petition for legally-binding targets to #ReviveOurWorld. Will you? Sign and Share... e-activist.com/page/67273/data/1?ea.tracking.id=facebook-sharenice to see some old friends back - 3 shovellers still in the summer plumage and 4 gadwall mid moult from summer to winter coats. Both on the south pool
they are like buses - get one sandpiper and more appear. There were 2 green sandpipers on the south pool yesterday and they flew up to the North where they joined 3 common sandpipers. This video is of the green
FAQs
FAQs about the pylon work at Portbury Wharf Nature Reserve
These are some of the questions which we have been asked about the pylon work taking place on the nature reserve.
We will answer questions to the best of our knowledge based on information we have received. However, for a definitive answer please contact the Hinkley Connection Team (HCT) directly at www.hinkleyconnection.co.uk. You can also read the latest briefings from HCT at the bottom of this page.
What will happen to our reserve when a temporary road is driven through it by the Hinkley work? Vital habitats will be destroyed for ever?
Answer: The Hinkley line is not going to destroy the reserve!The temporary road crosses the rough grazing fields, avoiding the pools and newt ponds. The most serious damage will be the removal of sections of hedgerows. These will be replaced, but will take some years to recover.
The work to replace the pylons and put in new lines will cause several years of disturbance and disruption, but the reserve will recover in the long term. There are lots of different threats to the future of the reserve and its wildlife, the Hinkley line is a temporary one and not as serious as many others.
At a meeting in the Folk Hall last year representatives from the Hinkley Point Connection Team addressed the public. They said that work would stop during the breeding season.
Answer: National Grid have been advised by Natural England that the biggest threat is to the wintering wildfowl, many of which are on the red and amber lists of birds under threat. They migrate to the reserve in the autumn and leave again in the spring. The Hinkley Connection Team have confirmed in writing that there will be no construction between September and April to minimise any effects on wintering birds.See Hinkley Connection Project at PWNR where other wildlife mitigation measures are outlined for Cetti’s Warblers, Barn Owls, Great Crested Newts, Water Voles and Bats.
What access to the reserve will the public have once work has started?
Answer: The public paths should remain open during the construction work. However, they might be temporarily closed for safety reasons when heavy machinery is being moved around the site.
However we have been advised that the car park at the Sheepway bridge will be closed until 2025. Please see the February 2020 Hinkley Connection briefing for more information about this.
There are low plastic fences at floor level in the fields, what are they for?
Related pages
Hinkley Connection Project at PWNR
Related posts
Hinkley Connection Update April 2020
This update relates to the continuation of work at Portbury Wharf Nature Reserve and the extra safety measures being taken during the Covid-19 pandemic. This is a briefing we have received from the Community Relations Team of the… Read More
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This update relates to closures and restrictions at Sheepway. This is a briefing we have received from the Community Relations Team of the National Grid Hinkley Connection Project. We are posting these briefings so you are kept up… Read More
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