Even though your lawn doesn't lose moisture in the fall as quickly as it does in the summer, it still needs some water, especially in Colorado. Our falls tend to be on the dry side, and your lawn needs about half an inch of water per week during both September and October.
Though your turf isn't gaining height as quickly, it's actually still doing a lot of growing. Fall is its time to recover from a stressful summer before winter hits. The growth is happening in the roots, increasing the density and storing energy. Consistent watering and nitrogen applications are absolutely key. In fact, fall fertilizer applications are considered the most important of the year. You can apply weed control as well.
The bright orange berries of American Bittersweet (Celastrus scandens) are just about irresistible to more than a dozen species of birds. It is a large bush that provides really good shelter as well. Be sure to make sure you’ve got male and female plants or you won’t get any berries!