Last month's mystery photograph (repeated here as plate 100) was clearly a small passerine with a bold head pattern, a longish tail, a sleek outline, and a conical bill with an angled cutting edge to the upper mandible. All these characters indicate a bunting; but which one? It is clearly not a Snow Bunting Plectrophenax nivalis, and at least the nest habitat eliminates Lapland Calcarius lapponicus
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