[cobirds] Violet-green Swallows & Human Structures

I'm writing to see if birders have observations of Violet-green Swallows nesting in buildings. I've seen them around buildings in the past -- and a few years ago, I watched one fetch bits of landscaping grasses from the tiny greenspace at Streets of Southglenn in Centennial -- but I haven't given much thought to this otherwise. On Tuesday, though, I watched a pair feeding amid Barn Swallows and visiting some small cavities in a stone building on DU's campus (Denver). 

I'm hoping to watch these birds a bit more, but I'm just curious about what others have observed. 

Unlike the building the swallows visited at DU, the buildings at Streets of Southglenn are fairly modern and typical in their design; I suspect at the latter space, they found holes in stucco or facades or small ledges, as opposed to actual cavities in stone.

- Jared

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