First new thread on here, other than on the 'Introduce Yourself' page, so please be gentle with me.
Anyway, in all the years I have been watching birds as either a keen watcher or as no more than observer of birds when out walking I have had one major 'disability' - that being that I am seriously tone deaf, along with having a difficulty (noticed by my wife in the last couple of years) in even hearing any higher pitched sound. Thus, when I read reports that, for example, a fellow birder heard blackcaps calling in the bushes I would be lost. Firstly because even if I had heard, & had pointed out to me, a blackcap calling last week, the song would be lost on my tone-deaf ears by this week. Secondly, it is unlikely my ears would even pick up the song in the first place.
So, & it's difficult to answer this one, what percentage of birds am I missing due to not being aware of them calling near to me?
Also, please tell me I am not the only birder in the world to suffer from tone-deafness & deafness within certain tone ranges.