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This incredible shot was captured on Sunday by reader David Windsor, of Fir Tree Avenue, West Drayton.
"It is the first time I have seen a Sparrowhawk in the area of my house, having lived here for 39 years," he said.
The tiny sparrow would make a decent meal for the raptor. According to online dictionary Wikipedia, there are numerous species of Sparrowhawk.
Can you tell us which type this is please? Tweet us (appropriately enough) @getwestlondon