Search for high pixel sizes?

I want to print some of my photos on a large 16x20 canvas. I do a lot of birdwatching, so many of my photos are cropped to a resolution that is much smaller than what would work for a canvas that size. I would like to do a search for pixel size that is a minimum of 1600x2000 but the search parameter for "pixel size" doesn't give a greater than choice.

Is there a way I can do a quick search for photos that have a minimum resolution of 1600 pixels on either axis?