Condor Update 4/19/2023, forwarding from The Peregrine Fund -
A glimmer of hope arrived in Marble Canyon, Arizona over the past several days as emergency rescue teams took a breath and Vermilion Cliffs National Monument temperatures rose to 90 degrees. The unusually wet and cold winter conditions this year may have played a role in the occurrence and spread of Highly Pathogenic Avian Influenza (HPAI). While our crews are ready to recover and address the needs of more sick birds at any time, new signs of infection in our flock have decreased and some of the birds in supportive care are showing signs of improvement.
As of April 17, 2023, 20 condors have died in the Arizona-Utah flock, and HPAI has been confirmed for 10 of those condors. Eight additional birds have been brought in for supportive care. Four of those condors died shortly after and are included in the total of 20 deceased birds. Four condors are still receiving supportive care and are seeing improvement.
The fight is far from over. Losses include 14 breeding-aged birds, 11 of which had recently been observed to be nesting or tending to young. In a matter of weeks, this event has set our recovery effort back a decade or more. Our science team is already analyzing emergency data to help define this long road to recovery. Before the outbreak of HPAI, the leading cause of death (accounting for 50% of confirmed mortalities) was lead poisoning. This new threat of HPAI, for which we do not yet have a solution (like a vaccine), highlights the need to address preventable and manageable threats, and rely even more heavily on proven strategies such as captive breeding to increase the wild population.
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Edit: Bald eagles are being killed by the virus at a rate of about two per day.