Naw, Owls and American Woodcocks start nesting in January and are often sitting on EGGS in the Snow! It really depends on the species but a lot of birds right now are just beginning to start the nesting procedure. Your little dove may be a little farther along than many.
Great shots on the camera! Wonderful for a first timer and good job up loading them to the forum. If you don't have one, get a good photo processor and manipulating program. I like Adobe Photshop Elements best. These allow you to lighten or darken pictures or areas of them, resize the pictures, crop them, sharpen the details, intensify or dampen colors, remove fuzziness and pixelation, cover up or remove unwanted elements in the picture, add watermarks, special effects, or borders to your picture. The things they can do to or for your pictures are INCREDIBLE.