Common Yellowthroat

You have the option of adding a second image to your post at the time you first upload. SO you need to create two images - one at 720 pixels max on the longest side, and a second one at 1200 pixels max on the longest side. You make both images from the same original master file by downsizing and saving two separate images.

I also recommend not using bicubic sharper when you downsize - just use the regular bicubic option when you resize and then do a separate sharpening step where you have control over how much the image gets sharpened and in what parts of the image.

This yellowthroat looks pretty good in this small image. I'd like to see a little more light on the face to bring out more texture and detail in the black mask area, and I'd prefer a bit more room on the left side and a little less on the right to give the composition better balance.

Nice looking bird with good details and color. The yellow can blow out quickly with these birds yet you did well holding detail.
I agree with Rich in that a little more room to the left of the frame would help this image a lot. It would make the bird seem to be looking into the frame.
I also agree that it needs a bit more light in the eyes to make things pop.

I love the fine detail in the belly feathers. It is a really nice shot. I would perhaps have liked to see a little more light in the eye so it was more prominant, but a very nice image, well done.

Beautiful detail. I agree with the others about the left and right spacing and having a little more light in the eye/on the black part of the face. I really like the colors of the image.

Nice pose and detail. Bird too centered with needed space on left.