WhenToBird

5 finch species in Idaho

When Do Finches Arrive in Idaho?

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 Idaho. The House Finch is in Idaho all year. It turns up on about 42% of checklists at its peak (early December) and on 23% in its quietest week (mid June).

When to look

PresentAll year
Peak weekDec 1-7early December
Quietest weekJun 15-21mid June

Best: early December. Here all year. Peak: on about 42% of Idaho checklists.

  1. Janpeak season
  2. Febpeak season
  3. Marpeak season
  4. Aprcommon
  5. Maypeak season
  6. Juncommon
  7. Julcommon
  8. Augcommon
  9. Seppeak season
  10. Octpeak season
  11. Novpeak season
  12. Decpeak season

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

Finches in Idaho, species by species

SpeciesFirst arrivalsCommon byPeakMost gone byPeak %
House Finchall year–Dec 1-7–42%
Pine SiskinMay 15-21May 15-21Jul 15-21Sep 1-720%
Red CrossbillApr 15-21May 15-21Jul 15-21Dec 15-217.7%
Evening GrosbeakJan 1-7Mar 22-31May 15-21Nov 15-215.9%
RedpollNov 8-14Nov 8-14Jan 8-14Mar 8-141.3%
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 Idaho 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 Idaho

Best counties for House Finch

Share of checklists at the peak
  1. Ada CountyBest early October · 1322 checklists that week, 84,430 in all64%
  2. Bannock CountyBest mid October · 113 checklists that week, 8,210 in all60%
  3. Twin Falls CountyBest mid November · 159 checklists that week, 12,478 in all55%
  4. Nez Perce CountyBest late June · 142 checklists that week, 10,708 in all55%
  5. Bonneville CountyBest late November · 129 checklists that week, 6,998 in all53%
  6. Shoshone CountyBest late December · 27 checklists that week, 2,886 in all52%

All finches in Idaho

10 species are reported regularly: 3 stay all year, 5 are summer visitors, and 2 are winter visitors.

#SpeciesPatternThrough the yearFirst arrivalsPeakPeak %
1House FinchYear-roundall yearDec 1-742%
2American GoldfinchYear-roundall yearAug 1-727%
3Pine SiskinAll year, most in summerMay 15-21Jul 15-2120%
4Lesser GoldfinchYear-roundall yearDec 1-719%
5Cassin's FinchSummer visitorJan 15-21May 8-1412%
6Red CrossbillSummer visitorApr 15-21Jul 15-217.7%
7Evening GrosbeakSummer visitorJan 1-7May 15-215.9%
8Cassia CrossbillSummer visitorJun 1-7Jul 15-212.2%
9Pine GrosbeakWinter visitorOct 22-31Feb 1-71.3%
10RedpollWinter visitorNov 8-14Jan 8-141.3%

Common questions

When do finches arrive in Idaho?
The House Finch is in Idaho all year. It turns up on about 42% of checklists at its peak (early December) and on 23% in its quietest week (mid June).
When do finches leave Idaho?
The House Finch does not leave Idaho: it is reported all year, from 23% of checklists in mid June to 42% in early December.
When is the best time to see finches in Idaho?
The House Finch is reported most often in early December, on about 42% of Idaho checklists.
Which finches are in Idaho?
House Finch, Pine Siskin, Red Crossbill, Evening Grosbeak, and Redpoll are reported regularly; the House Finch is the most common.