Harris's Sparrows are winter birds in Oklahoma: the first arrive in late October, they are common by the second week of November, peak in the second week of December (19% of checklists), and most are gone by late April.
When to look
First arrivalsOct 22-31late October
Common byNov 8-14the second week of November
PeakDec 8-14the second week of December
Most gone byApr 22-30late April
Best: the second week of December. First arrivals late October; most are gone by late April. Peak: on about 19% of Oklahoma checklists.
Janpeak season
Febpeak season
Marpeak season
Aprcommon
Mayuncommon
Junnot usually seen
Julnot usually seen
Augnot usually seen
Sepnot usually seen
Octrare
Novpeak season
Decpeak season
Darker months: more checklists report it. Outlined: peak month.
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 Oklahoma 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
0%few checklistsno data
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.
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In Oklahoma, the Harris's Sparrow is most often listed on checklists started between 8 and 10 am (11% of those checklists).
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
Month
Days 1-7
8-14
15-21
22-end
January
17%
19%
17%
16%
February
18%
17%
15%
16%
March
14%
15%
14%
13%
April
11%
11%
12%
12%
May
6.3%
0.3%
0.1%
0.1%
June
0.1%
0%
0%
0%
July
0%
0%
0%
0%
August
0%
0%
0.1%
0%
September
0%
0%
0%
0%
October
0%
0%
0.3%
1.4%
November
4.8%
11%
14%
17%
December
19%
19%
19%
18%
Neighboring states
Kansas: arrives the second week of October, 2 weeks earlier than Oklahoma
Missouri: arrives late October, in the same week than Oklahoma
Nebraska: arrives late September, 4 weeks earlier than Oklahoma
Texas: arrives mid November, 3 weeks later than Oklahoma
Common questions
When do Harris's Sparrows arrive in Oklahoma?
Harris's Sparrows are winter birds in Oklahoma: the first arrive in late October, they are common by the second week of November, peak in the second week of December (19% of checklists), and most are gone by late April.
When do Harris's Sparrows leave Oklahoma?
Most Harris's Sparrows have left Oklahoma by late April, when reports fall below half their usual rate. Stragglers are still reported until the second week of May.
When is the best time to see a Harris's Sparrow in Oklahoma?
The Harris's Sparrow is reported most often in the second week of December, on about 19% of Oklahoma checklists.
Where in Oklahoma are Harris's Sparrows seen most often?
By county, McClain County, Cotton County, and Logan County have the highest peak reporting rates for the Harris's Sparrow (counties with at least 200 checklists).