Wandering Tattlers arrive in California in the second week of July, peak in the second week of August (1.0% of checklists), and most are gone by late May.
When to look
First arrivalsJul 8-14the second week of July
Common byJul 8-14the second week of July
PeakAug 8-14the second week of August
Most gone byMay 22-31late May
Best: the second week of August. First arrivals the second week of July; most are gone by late May. Peak: on about 1.0% of California checklists.
Januncommon
Febrare
Marrare
Apruncommon
Maycommon
Junrare
Julcommon
Augpeak season
Seppeak season
Octuncommon
Novrare
Decrare
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 California 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 California, the Wandering Tattler is most often listed on checklists started between 6 and 8 am (0.3% 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
0.2%
0.2%
0.2%
0.2%
February
0.1%
0.1%
0.1%
0.2%
March
0.1%
0.1%
0.1%
0.1%
April
0.1%
0.1%
0.2%
0.4%
May
0.6%
0.5%
0.3%
0.1%
June
0.1%
0.1%
0.1%
0.1%
July
0.1%
0.1%
0.3%
0.8%
August
1.0%
1.1%
0.9%
0.9%
September
0.8%
0.6%
0.5%
0.4%
October
0.3%
0.2%
0.1%
0.1%
November
0.1%
0.1%
0.1%
0.1%
December
0.1%
0.1%
0.1%
0.1%
Neighboring states
Alaska: arrives early May, 9 weeks earlier than California
Hawaii: year-round, peaks the second week of November
Common questions
When do Wandering Tattlers arrive in California?
Wandering Tattlers arrive in California in the second week of July, peak in the second week of August (1.0% of checklists), and most are gone by late May.
When do Wandering Tattlers leave California?
Most Wandering Tattlers have left California by late May, when reports fall below half their usual rate.
When is the best time to see a Wandering Tattler in California?
The Wandering Tattler is reported most often in the second week of August, on about 1.0% of California checklists.
Where in California are Wandering Tattlers seen most often?
By county, Mendocino County, Humboldt County, and Ventura County have the highest peak reporting rates for the Wandering Tattler (counties with at least 200 checklists).