This female Yellow-rumped Warbler was the unfortunate victim of a common urban hazard for birds. The bird was killed by an impact with a large window. Under the right conditions a window can reflect a mirror-like image of the surrounding terrain. In this case, the bird mistook the reflected landscape for an actual passage through the structure of the building. A headlong collision resulted.



| County | – | Denton |
|
| City | – | Denton | |
| Date | – | Feb 11, 2012 | |
| Time of Day | – | Afternoon | |
| Temperature | – | Cold (less than 50°F/10°C) | |
| Weather | – | Clear | |
| Habitat | – | Community-Church/School/Civic | |
| Type of Behavior | – | Death | |
| Gender | – | Female | |
| Maturity | – | Adult | |
| Observer | – | Chris Jackson |






