We have been enjoying Tucson and Sabino Canyon in particular since the first of the year. The greenery and the flowering plants are working up to full bloom and they can be seen regularly every day as they don't move around.
The fauna is a different story. Sightings of animals are more time of day sensitive and often just plain accidental. You have to carry your camera daily to photograph them. This year's animal sighting are mentioned here. We'll go by size and start with a bit of a cheat. Some of the Sabino trails do allow horses and we see parties of riders on occasion. We will count them as the largest animals out there.
The White-Tailed deer are lovely to see. This one was munching away on the fruits of a barrel cactus.
Also seen most days are the Phainopeplas. The male is fairly large. Coloration is glossy purple or black with white wing bars that you can see when they fly. They love to sit on the top of desert trees like the mesquite.
The Cactus Wren also loves the tops of things--especially saguaros.
They also like the prickly tops of desert chollas--perhaps because they like to nest inside of them.
I haven't been able to catch a male Cardinal yet this year, but here is a nice female.
The Northern Mockingbird is another denizen of the desert.