
Philadelphia Vireo (Vireo philadelphicus) is in the Vireos, Shrike-Babblers, and Erpornis family (Vireonidae). Across the U.S., iNaturalist users have logged 2,873 research-grade observations of it in our sample, peaking in September.
Seasonal pattern in the national data: spring and fall migrant. Counts also reflect when people are out photographing, so compare months within a state rather than across states.
When to photograph Philadelphia Vireo: observations by month (U.S.)
About Philadelphia Vireo
The Philadelphia vireo (Vireo philadelphicus) is a small North American songbird in the vireo family (Vireonidae). "Vireo" is a Latin word referring to a green migratory bird, perhaps the female golden oriole, possibly the European greenfinch. The specific philadelphicus is for the city of Philadelphia.From Wikipedia via iNaturalist — article, CC BY-SA.
Philadelphia Vireo by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Texas | 550 | May | Apr–May |
| Ohio | 382 | May | May–May |
| Illinois | 244 | May | May–May |
| New York | 124 | September | Sep–Sep |
| Florida | 118 | October | Oct–Oct |
| Michigan | 112 | September | Sep–Sep |
| Tennessee | 110 | September | Sep–Oct |
| Wisconsin | 107 | May | May–May |
| Maryland | 106 | September | Sep–Sep |
| Minnesota | 99 | September | Sep–Sep |
| Pennsylvania | 95 | September | Sep–Sep |
| Massachusetts | 74 | September | Sep–Sep |
| Louisiana | 68 | April | Apr–May |
| Vermont | 68 | September | Sep–Sep |
| New Jersey | 50 | September | Sep–Sep |
| Indiana | 49 | September | Sep–Sep |
| Missouri | 49 | May | May–May |
| Virginia | 49 | September | Sep–Sep |
| Alabama | 45 | September | Sep–Oct |
| Kentucky | 41 | September | Sep–Sep |
| California | 35 | October | Sep–Oct |
| Maine | 34 | September | Sep–Sep |
| Georgia | 32 | October | Sep–Oct |
| Nebraska | 28 | September | Sep–Sep |
| North Carolina | 23 | September | Sep–Oct |
| Iowa | 22 | September | Sep–Sep |
| Mississippi | 20 | September | Sep–Oct |
| Colorado | 18 | October | Sep–Oct |
| Kansas | 16 | May | May–May |
| Arkansas | 15 | May | May–May |
| Delaware | 13 | September | Sep–Oct |
| South Dakota | 10 | May | May–May |
| Connecticut | 9 | September | Sep–Sep |
| New Mexico | 8 | October | Sep–Oct |
| North Dakota | 8 | May | May–May |
| Oklahoma | 8 | September | Sep–Sep |
| Arizona | 7 | October | Oct–Oct |
| District of Columbia | 6 | September | Sep–Oct |
| South Carolina | 6 | October | Sep–Oct |
| West Virginia | 6 | September | Sep–Sep |
Main season = months with at least 30% of the state's peak-month count.
Related birds (Vireos, Shrike-Babblers, and Erpornis)
Red-eyed Vireo

White-eyed Vireo
Blue-headed Vireo

Eastern Warbling Vireo
Western Warbling Vireo
Hutton's Vireo

Yellow-throated Vireo

Bell's Vireo
Photography tips
- Use a fast shutter (1/2000 s or faster) for birds in flight.
- Focus on the eye and shoot at the bird's eye level.
- Approach slowly and stop if the bird changes behavior; never bait or flush birds.
- Morning activity peaks in the first two hours after sunrise.
FAQ
When is the best time to photograph Philadelphia Vireo?
Nationally, September has the most observations, with the main season from September to September.
Where is Philadelphia Vireo most often seen?
The most observations come from Texas, Ohio, Illinois.