• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Search results

thxpress_search_the_forum Search Opus
  1. S

    Furthest distance birds that can be identified?

    Many many kilometres John - though you have to have had quite few years under your belt in Iberia first!;)
  2. S

    Furthest distance birds that can be identified?

    On raptor migration surveys here in southwest Portugal, with radar assistance that provides accurate distance measurements, we have been able to positively identify Griffons at close to 8kms. However, as the temperatures are usually warm with some heat-haze and dust in the atmosphere it makes...
Back
Top