WhenToBird

4 finch species in Colorado

When Do Finches Arrive in Colorado?

Adult male House Finch
Photo: Daughter Dad, CC BY 4.0 via iNaturalist

House Finches, Pine Siskins, and Red Crossbills are the finches you are most likely to see in Colorado. The House Finch is in Colorado all year. It turns up on about 46% of checklists at its peak (late February) and on 36% in its quietest week (mid June).

When to look

PresentAll year
Peak weekFeb 22-28late February
Quietest weekJun 15-21mid June

Best: late February. Here all year. Peak: on about 46% of Colorado checklists.

  1. Janpeak season
  2. Febpeak season
  3. Marpeak season
  4. Aprpeak season
  5. Maypeak season
  6. Junpeak season
  7. Julpeak season
  8. Augpeak season
  9. Seppeak season
  10. Octpeak season
  11. Novpeak season
  12. Decpeak season

Darker months: more checklists report it. Outlined: peak month.

Finches in Colorado, species by species

SpeciesFirst arrivalsCommon byPeakMost gone byPeak %
House Finchall year–Feb 22-28–46%
Pine SiskinMay 1-7May 1-7Jul 15-21Aug 15-2113%
Red CrossbillDec 8-14Feb 22-28Jul 22-31Oct 22-314.1%
Evening GrosbeakJul 1-7Jul 15-21Aug 8-14Jun 8-143.0%
0%20%40%60%House FinchPine SiskinRed CrossbillEvening GrosbeakJanFebMarAprMayJunJulAugSepOctNovDec
  • House Finch
  • Pine Siskin
  • Red Crossbill
  • Evening Grosbeak
Share of complete checklists reporting each species, by week (4 per month). Gaps: fewer than 10 checklists that week.

Frequency is the share of complete checklists in Colorado that listed the bird, 2016–2025. It is not a head count, and it follows where and when people go birding. How to read it.

Where in Colorado

Best counties for House Finch

Share of checklists at the peak
  1. Broomfield CountyBest mid July · 166 checklists that week, 16,139 in all74%
  2. Elbert CountyBest early December · 41 checklists that week, 5,660 in all71%
  3. Arapahoe CountyBest the second week of July · 1410 checklists that week, 98,030 in all71%
  4. Denver CountyBest the second week of July · 1074 checklists that week, 77,673 in all69%
  5. Douglas CountyBest late July · 1415 checklists that week, 60,057 in all63%
  6. Jefferson CountyBest early August · 3085 checklists that week, 183,749 in all62%

All finches in Colorado

9 species are reported regularly: 1 stay all year, 7 are summer visitors, and 1 are winter visitors.

#SpeciesPatternThrough the yearFirst arrivalsPeakPeak %
1House FinchYear-roundall yearFeb 22-2846%
2American GoldfinchAll year, most in summerJun 22-30Aug 8-1426%
3Lesser GoldfinchSummer visitorFeb 8-14Aug 8-1420%
4Pine SiskinAll year, most in summerMay 1-7Jul 15-2113%
5Red CrossbillSummer visitorDec 8-14Jul 22-314.1%
6Cassin's FinchSummer visitorSep 15-21Apr 8-143.7%
7Evening GrosbeakSummer visitorJul 1-7Aug 8-143.0%
8Pine GrosbeakSummer visitorJun 1-7Jul 15-211.5%
9Gray-crowned Rosy-FinchWinter visitorDec 1-7Jan 15-211.2%

Common questions

When do finches arrive in Colorado?
The House Finch is in Colorado all year. It turns up on about 46% of checklists at its peak (late February) and on 36% in its quietest week (mid June).
When do finches leave Colorado?
The House Finch does not leave Colorado: it is reported all year, from 36% of checklists in mid June to 46% in late February.
When is the best time to see finches in Colorado?
The House Finch is reported most often in late February, on about 46% of Colorado checklists.
Which finches are in Colorado?
House Finch, Pine Siskin, Red Crossbill, and Evening Grosbeak are reported regularly; the House Finch is the most common.