Following my visit to Canada last week I'm working my way through the many bird images I took. Some are easy to identify (mostly from what I've seen on here!) but some are less easy to identify. I've been using the excellent Cornell ornithology guide but I'd appreciate some help with the two below. Both seen in Ontario, Canada, close to the border with Detroit:
The first bird has me thinking Grey Vireo but not sure?



The next one I think might be either a Yellow-bellied flycatcher or possibly a Yellow-throated Vireo? Sorry for the poor quality of this shot, it's a 100% crop and it was taken through glass:
IMAGE LINK: https://flic.kr/p/oNVjkv



Any help appreciated and I will be posting images of what I saw on here once I've processed and identified all the birds.