K so the mystery bird of Dupont and Ossington continues......
I was talking with my roomate and we came up with this sound....
Detta-deh, Detta- deh, Detta dehhhhhhhhhh.
The third call is always the longest and it starts over.
My roomate has said that she is now hearing it during the day as well. She said it also makes a different sound during the day along with the detta-deh call.
I went on some bird websites and listened to some sounds, its doesn't sound like a nighthawk.
It kinda sounds like a Northern Flicker...but I don't think they tend to fly at night.