WhenToBird

Pinicola enucleator · Fringillidae

When Do Pine Grosbeaks Arrive in Maine?

Adult male Pine Grosbeak
Photo: Richard Littauer, CC BY 4.0 via iNaturalist

Pine Grosbeaks are winter birds in Maine: they arrive in the second week of November, peak in late January (1.5% of checklists), and most are gone by early March.

When to look

First arrivalsNov 8-14the second week of November
Common byNov 8-14the second week of November
PeakJan 22-31late January
Most gone byMar 1-7early March

Best: late January. First arrivals the second week of November; most are gone by early March. Peak: on about 1.5% of Maine checklists.

  1. Janpeak season
  2. Febpeak season
  3. Marcommon
  4. Aprnot usually seen
  5. Maynot usually seen
  6. Junnot usually seen
  7. Julnot usually seen
  8. Augnot usually seen
  9. Sepnot usually seen
  10. Octuncommon
  11. Novpeak season
  12. Decpeak season

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

0%0.5%1%1.5%2%Jan 1-7: 1.1% of 15499 checklistsJan 8-14: 1.3% of 11141 checklistsJan 15-21: 1.4% of 10729 checklistsJan 22-31: 1.6% of 15084 checklistsFeb 1-7: 1.5% of 9403 checklistsFeb 8-14: 1.2% of 11268 checklistsFeb 15-21: 0.9% of 14061 checklistsFeb 22-28: 1.2% of 9977 checklistsMar 1-7: 0.8% of 9649 checklistsMar 8-14: 0.7% of 11781 checklistsMar 15-21: 0.3% of 11613 checklistsMar 22-31: 0.1% of 17798 checklistsApr 1-7: 0.1% of 14638 checklistsApr 8-14: 0.1% of 16511 checklistsApr 15-21: 0.1% of 17164 checklistsApr 22-30: 0.1% of 22602 checklistsMay 1-7: 0.1% of 22556 checklistsMay 8-14: 0.1% of 27842 checklistsMay 15-21: 0.1% of 27748 checklistsMay 22-31: 0% of 38715 checklistsJun 1-7: 0% of 26916 checklistsJun 8-14: 0.1% of 23737 checklistsJun 15-21: 0.1% of 22733 checklistsJun 22-30: 0.1% of 28248 checklistsJul 1-7: 0.1% of 20290 checklistsJul 8-14: 0.1% of 18534 checklistsJul 15-21: 0.1% of 17319 checklistsJul 22-31: 0% of 22815 checklistsAug 1-7: 0% of 15004 checklistsAug 8-14: 0.1% of 14603 checklistsAug 15-21: 0% of 14972 checklistsAug 22-31: 0.1% of 19813 checklistsSep 1-7: 0% of 14567 checklistsSep 8-14: 0% of 14520 checklistsSep 15-21: 0% of 14339 checklistsSep 22-30: 0% of 16879 checklistsOct 1-7: 0% of 12959 checklistsOct 8-14: 0% of 13168 checklistsOct 15-21: 0.1% of 11184 checklistsOct 22-31: 0.2% of 13717 checklistsNov 1-7: 0.5% of 9823 checklistsNov 8-14: 1.1% of 9007 checklistsNov 15-21: 1.5% of 8528 checklistsNov 22-30: 1.7% of 10228 checklistsDec 1-7: 1.2% of 7505 checklistsDec 8-14: 1.5% of 7982 checklistsDec 15-21: 1.5% of 10455 checklistsDec 22-31: 1.4% of 14285 checklistsJanFebMarAprMayJunJulAugSepOctNovDec
Share of complete checklists reporting it, by week (4 per month). Grey bars: fewer than 10 checklists, not counted.

Frequency is the share of complete checklists in Maine 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.

JanFebMarAprMayJunJulAugSepOctNovDec
today
Second week of November

Each county is shaded by the share of complete checklists there that listed the bird, blended with the weeks either side. Darker is more often. It follows where people watch birds, not how many birds there are. How to read it.

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Where in Maine

Best counties

Share of checklists at the peak
  1. Aroostook CountyBest the second week of February · 122 checklists that week, 16,817 in all19%
  2. Franklin CountyBest mid December · 47 checklists that week, 14,182 in all9.5%
  3. Piscataquis CountyBest mid January · 130 checklists that week, 14,837 in all7.7%
  4. Somerset CountyBest mid November · 59 checklists that week, 12,202 in all7.4%
  5. Washington CountyBest late November · 221 checklists that week, 35,967 in all5.2%
  6. Penobscot CountyBest mid January · 745 checklists that week, 56,895 in all5.1%

Best spots

Share of checklists at the peak
  1. Chester G Bridges Tennis ComplexPenobscot County, best late January · 31 checklists that week, 1,035 in all22%
  2. Viles ArboretumKennebec County, best mid November · 23 checklists that week, 1,571 in all13%
  3. Scarborough Marsh Wildlife Management Area (Mill Brook)Cumberland County, best late January · 20 checklists that week, 443 in all13%
  4. Comstock PointWashington County, best late November · 28 checklists that week, 1,031 in all11%
  5. Oarweed CoveYork County, best the second week of December · 39 checklists that week, 626 in all7.6%

Busy spots report more of everything; compare the checklist counts before you drive anywhere.

Best time of day

In Maine, the Pine Grosbeak is most often listed on checklists started between 8 and 10 am (0.4% of those checklists).

0%0.5%12 am: too few checklists (510) to judge1 am: too few checklists (517) to judge2 am: too few checklists (581) to judge3 am: too few checklists (3242) to judge4 am: too few checklists (7221) to judge5 am: 0.1% of 19895 checklists6 am: 0.2% of 54578 checklists7 am: 0.4% of 92775 checklists8 am: 0.4% of 86962 checklists9 am: 0.4% of 78989 checklists10 am: 0.4% of 70954 checklists11 am: 0.4% of 59331 checklists12 pm: 0.4% of 50943 checklists1 pm: 0.4% of 49775 checklists2 pm: 0.4% of 49001 checklists3 pm: 0.3% of 43252 checklists4 pm: 0.1% of 33413 checklists5 pm: 0.1% of 25547 checklists6 pm: 0% of 18309 checklists7 pm: too few checklists (14287) to judge8 pm: too few checklists (5336) to judge9 pm: too few checklists (2253) to judge10 pm: too few checklists (1518) to judge11 pm: too few checklists (720) to judge12a3a6a9a12p3p6p9p
Share of checklists started in each local hour that reported it. It reflects when people go birding as well as when birds are active. Grey hours have too few checklists (under 2% of the state’s, or under 200) to judge.
Week-by-week table
MonthDays 1-78-1415-2122-end
January1.1%1.3%1.4%1.6%
February1.5%1.2%0.9%1.2%
March0.8%0.7%0.3%0.1%
April0.1%0.1%0.1%0.1%
May0.1%0.1%0.1%0%
June0%0.1%0.1%0.1%
July0.1%0.1%0.1%0%
August0%0.1%0%0.1%
September0%0%0%0%
October0%0%0.1%0.2%
November0.5%1.1%1.5%1.7%
December1.2%1.5%1.5%1.4%

Neighboring states

  • New Hampshire: arrives the second week of November, in the same week than Maine
  • Vermont: arrives the second week of November, in the same week than Maine
  • Michigan: arrives early November, 1 week earlier than Maine
  • Wisconsin: arrives the second week of November, in the same week than Maine

Common questions

When do Pine Grosbeaks arrive in Maine?
Pine Grosbeaks are winter birds in Maine: they arrive in the second week of November, peak in late January (1.5% of checklists), and most are gone by early March.
When do Pine Grosbeaks leave Maine?
Most Pine Grosbeaks have left Maine by early March, when reports fall below half their usual rate.
When is the best time to see a Pine Grosbeak in Maine?
The Pine Grosbeak is reported most often in late January, on about 1.5% of Maine checklists.
Where in Maine are Pine Grosbeaks seen most often?
By county, Aroostook County, Franklin County, and Piscataquis County have the highest peak reporting rates for the Pine Grosbeak (counties with at least 200 checklists).