Posted: Fri 30th Jun 2023

Devastating Bird Flu outbreak decimates Gull and Tern population at a Deeside colony

News and Info from Deeside, Flintshire, North Wales
This article is old - Published: Friday, Jun 30th, 2023

A colony of Black-Headed Gulls and Common Terns in Deeside have been severely affected by a bird flu outbreak, leading to a devastating loss of birds. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

The colony, located near the River Dee in Shotton, is one of the largest in Wales and serves as a nesting ground for these species on two concrete platforms, reports birdguides.com. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

Unfortunately, this summer has witnessed a sharp decline in the population due to the bird flu outbreak, and experts fear that it may take years for the numbers to rebound. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

Since early spring, over 40% of the Common Terns in the Shotton colony have perished due to bird flu, as reported by Pete Coffey from the Merseyside Ringing Group (MRG). ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

Additionally, approximately 200 Black-headed Gulls, which hosted over 400 pairs in 2021, have also succumbed to the virus. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

Tragically, not a single chick has survived so far. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

As reported by birdguides.com, Mr Coffey spoke to  Radio 4’s Today programme, he expressed the severity of the situation, saying, “This year we had over 1,000 Black-headed Gulls nesting by the end of April.” ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

He said: “We then started to notice a few dead gulls, and this escalated rapidly. In the end, we finished with more than 200 dead adults. It’s had a devastating impact on chicks – lots have died, and so far we’ve not had a single chick that has fledged.” ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

The Common Terns at the Shotton colony have faced a similar fate, with a 40% decline in the adult population. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

Mr Coffey highlighted the loss of breeding potential, stating, “We know the ages of many of the dead birds from our bird ringing data.” ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

“This showed us that many of the casualties we’ve picked up had many years of breeding ahead of them, so we have lost that cohort of the breeding population.” ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

The artificial island created by the steelworks near the saltmarsh in Shotton has been instrumental in providing a nesting site for the Common Terns. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

However, breeding seasons have been challenging due to tidal flooding. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

In 1970, the island attracted 13 pairs, and by 2021, with the addition of a second raft, it witnessed the hatching of over 20,000 tern chicks. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

The Chief Veterinary Officer of Wales, Dr Richard Irvine, emphasized the importance of vigilance and adherence to strict hygiene and biosecurity measures to protect birds from diseases like avian influenza. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

While the risk to the general public remains low, Dr Irvine urged people not to touch any sick or dead birds they may encounter and instead report sightings to DEFRA. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

Dr. Irvine underscored the need for bird keepers to maintain impeccable levels of hygiene and biosecurity, particularly in Flintshire where the wild bird population has been affected by the disease. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

The devastating impact of the bird flu outbreak in Deeside’s gull and tern colony highlights the vulnerability of bird populations to infectious diseases. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

Efforts are now underway to assess the extent of the outbreak, understand its implications for the local ecosystem, and implement measures to prevent further spread. ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

  ‌​‌‌​​​‌‍‌​‌​‌‌‌​‍‌​‌​‌‌​​‍‌​​‌‌‌‌​‍‌​​​​‌‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌‌​‌​‍‌​​​​‌‌​‍‌​‌‌‌‌‌​‍‌​​​‌‌​‌‍‌​​‌‌​‌​‍‌​‌​‌​‌‌‍‌​​‌​‌‌‌‍‌​​‌​‌‌​‍‌​​‌‌​‌​‍‌​​​‌​​‌‍‌​​‌‌​‌​‍‌​​​‌‌​​

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