See today's Globe & Mail for an article on bird/building collisions and a little bit of hope concerning building codes to address the problem.
http://www.theglobeandmail.com/real-est ... le1568105/Species collected in abundance include white-throated sparrow, golden-crowned kinglet, magnolia warbler, American woodcock, hermit thrush and Canada warbler (pg 5 of the 9 pictures).
Especially sad when you consider Canada warbler seems to be decreasing in abundance due to loss of habitat both north & south, & now this.