When do swallows leave Nevada?

Most Barn Swallows have left Nevada by the second week of October, when reports fall below half their usual rate. Stragglers are still reported until early November.

When is the best time to see swallows in Nevada?

The Barn Swallow is reported most often in late April, on about 20% of Nevada checklists.

Which swallows are in Nevada?

Barn Swallow, Cliff Swallow, Tree Swallow, Violet-green Swallow, and Bank Swallow are reported regularly; the Barn Swallow is the most common.

5 swallow species in Nevada

When Do Swallows Arrive in Nevada?

Photo: Diego González Dopico, CC BY 4.0 via iNaturalist

Barn Swallows, Cliff Swallows, and Tree Swallows are the swallows you are most likely to see in Nevada. Barn Swallows reach Nevada in mid March, are common by early April, peak in late April (20% of checklists), and most are gone by the second week of October.

When to look

First arrivalsMar 15-21mid March

Common byApr 1-7early April

PeakApr 22-30late April

Most gone byOct 8-14the second week of October

Best: late April. First arrivals mid March; most are gone by the second week of October. Peak: on about 20% of Nevada checklists.

Janrare
Febnot usually seen
Maruncommon
Aprpeak season
Maypeak season
Juncommon
Julpeak season
Augpeak season
Seppeak season
Octcommon
Novrare
Decrare

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

Swallows in Nevada, species by species

Species	First arrivals	Common by	Peak	Most gone by	Peak %
Barn Swallow	Mar 15-21	Apr 1-7	Apr 22-30	Oct 8-14	20%
Cliff Swallow	Mar 1-7	Apr 1-7	May 1-7	Aug 8-14	15%
Tree Swallow	Jan 15-21	Feb 8-14	Apr 8-14	Sep 8-14	14%
Violet-green Swallow	Feb 22-28	Mar 22-31	Jun 8-14	Aug 15-21	11%
Bank Swallow	Apr 1-7	Apr 8-14	May 1-7	Sep 8-14	4.8%

Barn Swallow
Cliff Swallow
Tree Swallow
Violet-green Swallow

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 Nevada 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 Nevada

Best counties for Barn Swallow

Share of checklists at the peak

Churchill CountyBest mid September · 39 checklists that week, 3,104 in all49%
Storey CountyBest the second week of August · 23 checklists that week, 1,593 in all39%
Pershing CountyBest mid August · 36 checklists that week, 1,407 in all34%
Humboldt CountyBest mid May · 64 checklists that week, 2,523 in all34%
Washoe CountyBest early August · 646 checklists that week, 53,497 in all34%
Carson CityBest mid August · 114 checklists that week, 6,992 in all32%

All swallows in Nevada

6 species are reported regularly: 5 are summer visitors and 1 mostly pass through.

#	Species	Pattern	First arrivals	Peak	Peak %
1	Barn Swallow	Summer visitor	Mar 15-21	Apr 22-30	20%
2	Northern Rough-winged Swallow	All year, most in spring	Mar 8-14	Apr 15-21	19%
3	Cliff Swallow	Summer visitor	Mar 1-7	May 1-7	15%
4	Tree Swallow	Summer visitor	Jan 15-21	Apr 8-14	14%
5	Violet-green Swallow	Summer visitor	Feb 22-28	Jun 8-14	11%
6	Bank Swallow	Summer visitor	Apr 1-7	May 1-7	4.8%

Common questions

When do swallows arrive in Nevada?: Barn Swallows reach Nevada in mid March, are common by early April, peak in late April (20% of checklists), and most are gone by the second week of October.
When do swallows leave Nevada?: Most Barn Swallows have left Nevada by the second week of October, when reports fall below half their usual rate. Stragglers are still reported until early November.
When is the best time to see swallows in Nevada?: The Barn Swallow is reported most often in late April, on about 20% of Nevada checklists.
Which swallows are in Nevada?: Barn Swallow, Cliff Swallow, Tree Swallow, Violet-green Swallow, and Bank Swallow are reported regularly; the Barn Swallow is the most common.