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Until they flew away in the summer, 'my' sparrows learned the trick of hanging onto the wire nut-feeder, just like the bluetits. With 3 or 4 on the feeder at the same time, it required replenishing every 2 or 3 days. I don't mind, since the jackdaws had usurped their right to eat from the ground feeder.
Almost any bird is welcome in my garden, phoenixes, rocs, condors, wyverns, you name it. Not many dodos though. But the sparrows are my favourite, bless 'em.