Maybe within the last 8 years I've been seeing and hearing hummingbirds around where I live. I can only think with the increasing growth in more gardens, parks and waterways being left undeveloped some wildlife have decided to come down out of the mountains and explore the busy area known as the front range I25 corridor. Heck even some beavers came down from coal creek canyon I suspect and went up a little creek called rock creek to do some development also. I saw some Boulder County park rangers here at this new recently built beaver pond and they were telling me beavers haven't been seen in these area for decades and I know I've not seen any beaver evidence in the 30+ years I've been exploring the open spaces around my homefront. I asked them if the beavers work was gonna be destroyed and they said only if it effects those who hold the water rights to the creek feel it conflicts with their irrigation, they're just gonna leave it be and keep an eye on them.