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Message: <blockquote data-quote="Purple Heron" data-source="post: 3600363" data-attributes="member: 143142">Hi, Jos,Thanks for the info.  Not sure what to make of it as much research has been done to show that EMR disrupts migration and causes a great many other problems for birds.  This is what I am seeing here, and I have heard from a ringer in Ireland who is observing a similar situation to mine since local cell towers went 4G a year ago.  I have been doing some research and found out that Turkey uses 4.5G and is testing 5G throughout the country--this may easily have an impact on Samos as we are very close, and indeed on all the border regions in Greece where unfortunately several major bird sites are located.  It may be a question of signal strengths or bandwidths (I'm not a physicist but they are not all the same)--Turkey's is different from EU standards.  Whatever the cause, I am very alarmed.  However, if you aren't seeing steep declines as we are here, I am happy for you and the birds.  Keep an eye out for system upgrades and see if you notice a difference then.  You may be interested in this letter from the US Department of Information regarding wireless and birds: <a href="http://www.ntia.doc.gov/files/ntia/us_doi_comments.pdf" target="_blank">http://www.ntia.doc.gov/files/ntia/us_doi_comments.pdf</a>  which shows US Fish and Wildlife have been worried about cell towers and birds for some time.</blockquote>