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Message: <blockquote data-quote="PaulD" data-source="post: 1750636" data-attributes="member: 11840">New or overlooked information is always welcome. If you have information that shows greater average dispersal distances than 52km and greater overall distances than 528km then please post a link to it or detail the source.Tony Warburton's paper made no mention of average dispersal distances and the longest movement he noted was 480km, so if there "is plenty of evidence showing displaced juv Eagle owls are travelling far greater distances" than I listed then Tony missed it as well.I should stress that I am not suggesting that Eagle Owls are incapable of making sea crossings (the paper by Melling et al details a 40km sea crossing to Gotland). However the available evidence clearly indicates that sea crossings are a significant barrier to Eagle Owls and that they normally avoid them. Which makes it makes it extremely unlikely that they will get here in sufficient numbers to colonise.But as noted above, new or overlooked information is always welcome so please post a link.</blockquote>