Broad-Billed Hummingbird or Blue-Throated Mountain-Gem?

Here's how to tell the difference

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Broad-Billed Hummingbird

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Blue-Throated Mountain-Gem image 1

Blue-Throated Mountain-Gem

Broad-Billed Hummingbird

Cynanthus latirostris

General appearance

The broad-billed hummingbird is a small, vibrant bird known for its vivid coloration and striking bill. It features a broad, red bill with a dark tip, making it easily recognizable. The plumage showcases brilliant emerald green coloration that shimmers in sunlight, complemented by a bluish throat.

Male vs female

Males possess more vivid plumage compared to females, with a noticeable bright blue throat and shimmering green body. Females are less colorful, often displaying a duller green back and a white or greyish throat. Both sexes have the characteristic red bill, although females may exhibit a slightly shorter and less intensely colored beak.

Juvenile

Juvenile broad-billed hummingbirds typically exhibit a duller version of the adults’ plumage. They often lack the vivid blue throats seen in adult males and can display a grey or buff-colored throat. Identifying juveniles in the wild can be challenging due to their resemblance to females, with a less developed, muted color palette.

Size

3.1 - 3.9 in/0.1 oz

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How to tell the Broad-Billed Hummingbird from the Blue-Throated Mountain-Gem

Visual differences

The Broad-Billed Hummingbird is smaller, measuring 3-4 inches and weighing 0.07-0.14 ounces, while the Blue-Throated Mountain-Gem is larger, at 4.5-5 inches long and 0.21-0.35 ounces. The Broad-Billed has a vivid emerald green body with a red bill and a bluish throat, whereas the Blue-Throated features metallic green upperparts, a prominent iridescent blue throat, and white-tipped tail. The Broad-Billed's bill is broad and red-tipped, while the Mountain-Gem has a straight, medium-length bill. Males of both species display more vivid colors than females.

Key differences and behavior

The Broad-Billed Hummingbird (2-4g, 3-4 inches) inhabits semi-open Arizona habitats, often near streams. It defends its territory actively, with males using vantage points to ward off competitors. In contrast, the larger Blue-Throated Mountain-Gem (6-10g, 4.5-5 inches) prefers shady mountain canyons and streams, subtly defending its territory through mid-level perching and a monotonous squeak. Both species feed on nectar and insects, but the Mountain-Gem can rely on insects when flowers are scarce. Broad-Billed Hummingbirds lower their body temperature on cold nights to save energy, while Mountain-Gems emphasize a duetting courtship over visual displays. The Broad-Billed Hummingbird's nesting is lower and camouflaged with leaves, while the Mountain-Gem uses higher, sheltered sites adorned with green moss.

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