Chimney Swifts & Bobolink

It was good to see a few Chimney Swifts flittering over the house on several evenings this past week. I also spotted my first Bobolink of the year, in an abandoned cow pasture, a couple of days ago. Both sightings were heartening because: 1. Chimney Swifts are a threatened species in Ontario, due to reduced food supply (pesticides) and reduced nesting spots (chimneys); and 2. Bobolinks are in rapid decline in both South and North American due primarily to habitat loss (upland grass fields). Both of these birds are special to see and hear. The Chimney Swift, because of its shape, is nicknamed the Flying Cigar. The Bobolink's burbling song reminds me of being a kid and spinning the station-selector dial on old radios which created a musical mish-mash of sounds that resembled the Bobolink, in full voice. Here's hoping these birds don't become extirpated in Ontario - in my lifetime, anyway.
BtheB