WhenToBird

Charadrius semipalmatus · Charadriidae

When Do Semipalmated Plovers Arrive in Connecticut?

Adult Semipalmated Plover
Photo: Hungry-Sarracenia Photo, CC BY 4.0 via iNaturalist

Semipalmated Plovers reach Connecticut in the second week of July, are common by mid July, peak in the second week of August (13% of checklists), and most are gone by late September.

When to look

First arrivalsJul 8-14the second week of July
Common byJul 15-21mid July
PeakAug 8-14the second week of August
Most gone bySep 22-30late September

Best: the second week of August. First arrivals the second week of July; most are gone by late September. Peak: on about 13% of Connecticut checklists.

  1. Jannot usually seen
  2. Febnot usually seen
  3. Marnot usually seen
  4. Aprrare
  5. Mayuncommon
  6. Jununcommon
  7. Julcommon
  8. Augpeak season
  9. Seppeak season
  10. Octuncommon
  11. Novnot usually seen
  12. Decnot usually seen

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

0%5%10%15%Jan 1-7: 0.1% of 18950 checklistsJan 8-14: 0.1% of 13676 checklistsJan 15-21: 0.1% of 13377 checklistsJan 22-31: 0.1% of 17004 checklistsFeb 1-7: 0.1% of 10218 checklistsFeb 8-14: 0.1% of 11568 checklistsFeb 15-21: 0.1% of 15916 checklistsFeb 22-28: 0.1% of 11413 checklistsMar 1-7: 0.1% of 10754 checklistsMar 8-14: 0.1% of 12051 checklistsMar 15-21: 0.1% of 12616 checklistsMar 22-31: 0.1% of 17801 checklistsApr 1-7: 0.1% of 13186 checklistsApr 8-14: 0.1% of 14428 checklistsApr 15-21: 0.1% of 14738 checklistsApr 22-30: 0.3% of 21753 checklistsMay 1-7: 1.4% of 22494 checklistsMay 8-14: 2.8% of 23363 checklistsMay 15-21: 5.3% of 20219 checklistsMay 22-31: 5.2% of 20778 checklistsJun 1-7: 3.2% of 12234 checklistsJun 8-14: 1.9% of 12491 checklistsJun 15-21: 1.0% of 10856 checklistsJun 22-30: 0.6% of 11964 checklistsJul 1-7: 0.6% of 9437 checklistsJul 8-14: 1.8% of 8599 checklistsJul 15-21: 5.2% of 8252 checklistsJul 22-31: 10% of 11329 checklistsAug 1-7: 13% of 8116 checklistsAug 8-14: 14% of 8051 checklistsAug 15-21: 14% of 8502 checklistsAug 22-31: 13% of 13673 checklistsSep 1-7: 11% of 9873 checklistsSep 8-14: 6.8% of 9735 checklistsSep 15-21: 5.0% of 10120 checklistsSep 22-30: 3.7% of 12543 checklistsOct 1-7: 2.2% of 10735 checklistsOct 8-14: 1.4% of 10869 checklistsOct 15-21: 1.0% of 10436 checklistsOct 22-31: 0.6% of 13808 checklistsNov 1-7: 0.3% of 10507 checklistsNov 8-14: 0.3% of 9827 checklistsNov 15-21: 0.1% of 9904 checklistsNov 22-30: 0.1% of 13396 checklistsDec 1-7: 0.1% of 8974 checklistsDec 8-14: 0.1% of 9468 checklistsDec 15-21: 0.1% of 11614 checklistsDec 22-31: 0.1% of 16616 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 Connecticut 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 Connecticut

Best counties

Share of checklists at the peak
  1. New Haven CountyBest the second week of August · 1918 checklists that week, 139,721 in all33%
  2. Fairfield CountyBest the second week of August · 1582 checklists that week, 139,848 in all16%
  3. Windham CountyBest late August · 396 checklists that week, 19,034 in all14%
  4. New London CountyBest the second week of August · 869 checklists that week, 65,205 in all13%
  5. Middlesex CountyBest mid August · 516 checklists that week, 39,919 in all6.8%
  6. Hartford CountyBest late August · 2179 checklists that week, 105,735 in all3.1%

Best spots

Share of checklists at the peak
  1. Beard Cove (historical) (Cedar Beach)New Haven County, best the second week of August · 53 checklists that week, 1,177 in all93%
  2. Morse ParkNew Haven County, best mid August · 207 checklists that week, 3,681 in all89%
  3. Cedar PointFairfield County, best early August · 20 checklists that week, 1,206 in all88%
  4. Beard Cove (historical)New Haven County, best the second week of August · 256 checklists that week, 8,925 in all87%
  5. Great Island MarshesNew London County, best mid May · 20 checklists that week, 439 in all73%
  6. Greenwich Point ParkFairfield County, best early August · 46 checklists that week, 2,871 in all72%

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

Best time of day

In Connecticut, the Semipalmated Plover is most often listed on checklists started between 8 and 10 am (2.6% of those checklists).

0%1%2%3%12 am: too few checklists (325) to judge1 am: too few checklists (367) to judge2 am: too few checklists (488) to judge3 am: too few checklists (792) to judge4 am: too few checklists (2722) to judge5 am: too few checklists (9489) to judge6 am: 2.6% of 33657 checklists7 am: 2.1% of 62964 checklists8 am: 2.6% of 70645 checklists9 am: 2.7% of 64870 checklists10 am: 2.4% of 58827 checklists11 am: 2.3% of 51689 checklists12 pm: 2.1% of 45288 checklists1 pm: 2.3% of 44765 checklists2 pm: 2.2% of 44173 checklists3 pm: 1.9% of 41979 checklists4 pm: 2.3% of 33219 checklists5 pm: 2.5% of 24828 checklists6 pm: 2.8% of 15856 checklists7 pm: too few checklists (8126) to judge8 pm: too few checklists (1994) to judge9 pm: too few checklists (533) to judge10 pm: too few checklists (349) to judge11 pm: too few checklists (286) 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
January0.1%0.1%0.1%0.1%
February0.1%0.1%0.1%0.1%
March0.1%0.1%0.1%0.1%
April0.1%0.1%0.1%0.3%
May1.4%2.8%5.3%5.2%
June3.2%1.9%1.0%0.6%
July0.6%1.8%5.2%10%
August13%14%14%13%
September11%6.8%5.0%3.7%
October2.2%1.4%1.0%0.6%
November0.3%0.3%0.1%0.1%
December0.1%0.1%0.1%0.1%

Neighboring states

  • Rhode Island: arrives the second week of May, 8 weeks earlier than Connecticut
  • Massachusetts: arrives the second week of July, in the same week than Connecticut
  • New Jersey: arrives the second week of July, in the same week than Connecticut
  • New York: arrives mid July, 1 week later than Connecticut

Common questions

When do Semipalmated Plovers arrive in Connecticut?
Semipalmated Plovers reach Connecticut in the second week of July, are common by mid July, peak in the second week of August (13% of checklists), and most are gone by late September.
When do Semipalmated Plovers leave Connecticut?
Most Semipalmated Plovers have left Connecticut by late September, when reports fall below half their usual rate. Stragglers are still reported until the second week of October.
When is the best time to see a Semipalmated Plover in Connecticut?
The Semipalmated Plover is reported most often in the second week of August, on about 13% of Connecticut checklists.
Where in Connecticut are Semipalmated Plovers seen most often?
By county, New Haven County, Fairfield County, and Windham County have the highest peak reporting rates for the Semipalmated Plover (counties with at least 200 checklists).