Bird Flu…Tuesday in Bird World

10 February 2026

Hello Everyone,

Current Status as John Bunker Sands: The second eaglet is still alive.

With the sudden death of JBS25, we are all feeling great anxiety. We will never know for certain what killed the little eaglet without a necroscopy – those take time and resources. The parents have now begun covering the little one. I noticed that someone on the chat wondered if the parents knew of the little one’s passing. The late Laura Culley – a friend and a great falconer – would have said very loudly: “And why wouldn’t they know that their child had died!” Laura trained and flew many raptors for at least three decades. She believed that they had higher powers – powers that we have lost including the ability to communicate without what humans know as ‘talking’. I miss her wisdom and yes, the raptors know. I have even observed their mourning over the death of their children and others leaving the nest having felt what we might call guilt for bringing in the prey that killed their children. The most vivid memory of that was Joe at the Captiva nest when Peace and Love died after he brought a rat to the nest that had died from rodenticide poisoning. He not only visibly mourned but left – and did not return.

It is 2230 as I am writing this, and if JBS 24 is to perish from HPAI, we will see this within the next 36 hours. I hope not. JBS 24 ate well Monday afternoon, even playing for a moment with dad’s tailfeathers. The little eaglet even had a late feed – unfortunately it was from the Coot on the nest that could have been the cause of the other’s death if it had HPAI.

HPAI happens suddenly. Several years ago, I reported on two White-tailed eaglets in Estonia that had died on a nest after being fed a crane. The two tiny eaglets died on the screen within half an hour of one another. In this instance, it was a crane that had come to the nest as prey. It turned out that these deaths were the first known instance of HPAI deaths in ‘spring’, sending alarm bells throughout the field of avian virology. Normally, HPAI happens in the fall, but this meant that migratory birds were affected. Thijs Kuiken is a prominent Professor of Comparative Pathology at the Department of Viroscience at Erasmus University Medical Centre (Erasmus MC) in Rotterdam, Netherlands. His research focuses on emerging infectious diseases, zoonoses, and influenza, with a specialisation in the pathology and pathogenesis of viruses in wildlife. Dr Kuiken contacted me after I reported the deaths on my blog and followed up with veterinarians in the area. He has written extensively on HPAI and its links to factory farming. The birds are the victims of this deadly disease that continues to kill around the world.

Here are some more recent articles showing the impact of this terrible disease.

An abstract of a recent article by Dr Kulken:

https://royalsocietypublishing.org/rspb/article-abstract/280/1763/20130990/74728/Is-low-pathogenic-avian-influenza-virus-virulent

Mark Avery looked at Bird Flu and its impact on the UK from 2016-2025 in this blog:

Thank you so much for stopping in with us today. Keep sending your good wishes to the John Bunker eaglet.

Thank you to Mark Avery and the authors of the articles on HPAI as well as to the John Bunker Sands Wetlands for their streaming cam that allows us to look into the lives of these eagles. Our condolenes on the loss of the first little fluff ball.