Yep - I never said that Willows don't visit bird tables (they do, frequently), just that they are less efficient at exploiting them than Great & Blue Tits. The result is increased populations of Great & Blue Tits, looking for nest sites in spring, and one very easy source for them is evicting...
My personal impressions of factors affecting Willow Tits (not all confirmed by published studies [yet]):
1 Competition from populations of Great & Blue Tits, enhanced due to bird feeders; these two are better adapted to exploit concentrated food sources like feeders, and then evict Willows from...
Visible! But so are the posts by the person concerned still visible too - and his posts need rebuttal for all to see, so we go on answering them :sneaky:
Deb has already dealt with most of your stuff, but:
Orioles would readily recolonise naturally if they could. Bringing them back is ecologically simple, though expensive (in the short tem at least). All it requires is (1) the planting of large areas of poplar woodlands (acutally a potentially...
Actually, huge numbers of people are interested in that. It's just that these people, not being supporters of the current party in power, don't have any political clout or funds, whereas the grouse moor owners do.
The most serious legitimate complaint I've seen about these reintroductions is that they divert large amounts of scarce funding away from other schemes that might help other endangered wildlife.
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