Birds that are commonly found in Colorado Springs and are native to North America. All of these species are widely distributed across the continental United States; expect to see them just about everywhere.

https://upload.wikimedia.org/wikipedia/commons/9/92/American_Robin-27527.jpg
Author: Ken Thomas. Public Domain.

• Pleasant song of warbling phrases, sometimes sung at night. Song can vary by region and individual. Also gives a variety of scolding calls
• Most, but not all, robins migrate south for winter. Birds that stay for winter may survive on berries.
• Not related to the European robin
• Adult males have more vivid coloration than females

https://www.flickr.com/photos/jpmckenna/3177645376/sizes/m/
Author: J. P. McKenna.  Creative Commons Attribution-Noncommercial 2.0

• Larger than other commonly-seen songbirds
• Most common vocalization is the “caw”; but crows make a variety of sounds including a low rattle. Immature birds make a higher-pitched caw
• Motion of wings in flight resemble swimming
• Often seen in small family groups much of the year; may congregate in large flocks ("murders") in winter.

https://commons.wikimedia.org/wiki/File:Quiscalus-quiscula-001.jpg
Author: Mdf.  GNU Free Documentation License 1.2, no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts

• Smaller than American Crow; about the size of a robin but with longer tail and beak.
• Male has glossy, iridescent plumage; female has drabber plumage
• Vocalizations are metallic-sounding
• Easy to confuse with Brewer’s Blackbird

https://commons.wikimedia.org/wiki/File:Northern_Flicker_%286089627647%29.jpg
Author: Mike's Birds. Creative Commons Attribution-ShareAlike 2.0 Generic

• Formerly considered two species, now one: Western form is “red shafted”, with red under wings; Eastern form is “yellow shafted”
• White rump flashes during flight
• Ants are a significant portion of diet
• Although the Flicker is a woodpecker, it's often seen feeding on the ground, sometimes in the company of robins
• Vocalizations include a resonant, maniacal cackle; a sharp descending "chew"; and a squeaky glass-rubbing sound. Also drums on wood and metal with its bill.

https://commons.wikimedia.org/wiki/File:Male_mallard.jpg
Author: Calibas. Creative Commons  Attribution Share Alike 3.0 Unported

• Very common and widespread duck
• Female is streaky brown with orange beak; male has brilliant green head
• Stereotypical loud quacks given by females
• Dabbling duck; diet mostly consists of vegetation

https://commons.wikimedia.org/wiki/File:House_Finch-27527-2.jpg
Author: Ken Thomas. Public Domain.

• Song made up of melodic conversational phrases ending with an emphatic buzz
• Adult males have variable patches of red or rosy-red; females and juveniles are drab
• Common visitor to feeders
• Formerly a western species, now widespread across the U.S.

https://commons.wikimedia.org/wiki/File:Mourning_Dove_2006.jpg
Author: Alan D. Wilson. Public Domain, Creative Commons Attribution-Share Alike 2.5

• Perches on large tree limbs and telephone wires; feeds on open ground
• Mournful, rhythmic coo that may be mistaken for an owl, but heard during the day
• Makes a whistling sound with its wings as it flies
• The long graceful tail is noticeable both in flight and while stationary.

https://commons.wikimedia.org/wiki/File:Buteo_jamaicensis_Red_tailed_hawk_b_1.6.2008.jpg
Author: MONGO. Public Domain.

• Very large hawk
• Common, widespread, and comes in different color phases; but usually has a red tail
• Often seen perching on street lights along Interstate 25
• Call is the generic hawk/eagle call heard in movies and TV

https://www.flickr.com/photos/stirwise/2450795738/sizes/m/
Author: stirwise (Kerry Lannert) Creative Commons Attribution-Noncommercial-No Derivative Works 2.0 Generic

• Small, energetic, acrobatic bird
• Relatively tame and bold; often seen at feeders, and usually investigates new feeders before other birds
• Scolding call is a "chick-a-dee-dee-dee"; song is a simple two notes
• Survives cold winter nights by going into torpor