Gray Flycatcher: video clip-- dipping it's tail

This is one of many Gray Flycatchers brought down in 'fall-out' conditions in Canon City, CO by a late snowstorm (I personally found at least 22 Gray Flycatchers). This bird was taped the day after the storm as it perched at Sell's Lake while foraging. It shows the tail dipping distinctive to this species. Interestingly it loses it's balance and almost falls off the perch. SeEtta