Allen's Hummingbird or Broad-Tailed Hummingbird?
Here's how to tell the difference
Allen's Hummingbird
Broad-Tailed Hummingbird
Allen's Hummingbird
Selasphorus sasin
General appearance
The Allen's hummingbird is a small species, measuring between 3-3 1/2" (8-9 cm), roughly the size of a Sparrow. The bird displays a variety of colors including black, green, orange, red, and white. Its physical features consist of a multi-pointed, rounded, and wedge-shaped tail, with narrow, rounded and short wings.
Male vs female
Mature males have coloration similar to a Rufous Hummingbird, with the notable distinction of a green back. However, Rufous Hummingbirds can also display green backs making identifying Allen's challenging outside of their typical range. The females and young of the species are completely identical to their Rufous counterparts.
Juvenile
The juvenile Allen's hummingbirds inherit the identical appearance of the female and are similar to Rufous younglings, so identifying them can potentially be difficult. Instead, their range of habitat can provide a decent clue towards proper identification.
Size
3.0 - 3.5 in/0.1 oz
There's more to learn about Allen's Hummingbird
View full detailsBroad-Tailed Hummingbird
Selasphorus platycercus
General appearance
The broad-tailed hummingbird measures 4-4 1/2 inches (10-11 cm) in length. It displays a unique coloration pattern with a green back, the sides, and distinct pearlescent hues. The tail is multi-pointed, notched, rounded, and square-tipped, embodying a rusty orange color. Their wings are narrow, rounded, and short, akin to that of a sparrow.
Male vs female
Males are identifiable with a rose-colored throat, contributing to their vibrant display. In contrast, females bear a green coat above with buff tones on the sides. They are distinguishable from the female Rufous Hummingbird by their larger tail. Seasonal variations in appearance may occur, particularly in males.
Juvenile
Juvenile broad-tailed hummingbirds retain a semblance to young male Anna's hummingbirds found in the western regions. Identification markers for juveniles are not specifically mentioned, but they are likely to possess less vibrant, more uniform coloration than adults, following the general pattern in avian species.
Size
3.3 - 3.8 in/0.1 oz
There's more to learn about Broad-Tailed Hummingbird
View full detailsHow to tell the Allen's Hummingbird from the Broad-Tailed Hummingbird
Visual differences
Allen's Hummingbirds are smaller, measuring about 3-3 1/2 inches, compared to the Broad-Tailed Hummingbird's 4-4 1/2 inches. Allen's males have a green back with a rufous appearance, while Broad-Tailed males have a rose-colored throat and a rusty orange tail with distinct green back and sides. Female Broad-Tailed are larger with buff sides, unlike the smaller Allen's females. Both species have narrow, rounded wings, but the Broad-Tailed has a notched, square-tipped orange tail. Allen's tail is multi-pointed and wedge-shaped.
Key differences and behavior
Allen's and Broad-Tailed Hummingbirds exhibit distinct behaviors and preferences. Allen's Hummingbirds, weighing 0.07-0.14 ounces, are notorious for their aggression and excellent memory of flower locations. They thrive in semi-open areas and migrate to Mexico in winter, performing a J-shaped flight during courtship. Broad-Tailed Hummingbirds, slightly heavier at 0.11-0.14 ounces, breed in high-altitude open forests, showcasing elaborate aerial displays with distinctive wing sounds for courtship. Both species consume nectar and insects, favoring red tubular flowers, but Allen's Hummingbirds are highly aggressive at feeders. Their nesting behaviors are similar, with females solely incubating eggs and feeding chicks, though Broad-Tailed Hummingbirds favor montane meadows. Allen's Hummingbirds prefer lower altitude semi-open habitats compared to the mountainous regions of Broad-Tailed Hummingbirds.
Still not sure? Here are more lookalikes!
Allen's Hummingbird vs Rufous Hummingbird
Allen's Hummingbird vs Calliope Hummingbird
Broad-Tailed Hummingbird vs Rufous Hummingbird
Broad-Tailed Hummingbird vs Anna's Hummingbird
Broad-Tailed Hummingbird vs Ruby-Throated Hummingbird
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