I couldn't include them in my report as they weren't in my garden, but there's been a huge decline in jackdaws here this year. We have a nesting site across the road, usually with about 40 nests by egg laying time. Normally we'd see about 50 to 70 birds around in the evening in late January, but the most we've seen this year is about 20. Is this common everywheree?
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There are plenty in Richmond Park. never seen one in my garden though.