StevePreddy
Well-known member
Worldwide, I've no idea as there must be many species that I haven't seen which are locally common and I have no idea of the total population. I suppose using Birdlife Threatened Birds volume I could work it out but it would take a lot of effort.
Ian, if you're interested in finding out, one thing you could do is add your list to BUBO listing (it'll take a while given that you're nudging 8000, but bear with me), and then use their "top targets" button. What this actually tells you is which species you haven't seen which have been seen by the highest number of other BUBOers, so not quite the most common species, but arguably as good a measure of blockage/tartiness/whatever the correct term might be. Cooper's Hawk and Hairy Woodpecker head my list, which with 5 trips to the US under my belt is pretty inexcusable. Even Jon Hornbuckle's 9000+ list has quite a few interesting absentees (Houbara Bustard and Spotted Sandgrouse for starters) so you might be in for a surprise if you give it a try.