Evening Grosbeak vs Thick-billed Longspur

In short

The Evening Grosbeak and the Thick-billed Longspur are distinct in both appearance and habitat. The Evening Grosbeak is a large, robust finch with a thick bill, while the Thick-billed Longspur is a smaller bird of the open plains with a distinctive aerial display. Their habitats and behaviors are quite different, aiding in identification.

Identification tips

1. Check the bill size and shape: Evening Grosbeaks have a thick, conical bill, while Thick-billed Longspurs have a smaller, less robust bill. 2. Observe the habitat: Grosbeaks are typically in forested areas; Longspurs are in open plains. 3. Look for plumage patterns: Grosbeaks have bold yellow and black with white wing patches; Longspurs have a 'T'-patterned tail. 4. Note behavior: Longspurs perform aerial displays; Grosbeaks flock together.

Size

The Evening Grosbeak is larger and more robust compared to the smaller, more slender Thick-billed Longspur.

Plumage

Evening Grosbeaks have a striking yellow and black plumage with a prominent white wing patch, while Thick-billed Longspurs have more subdued brown and gray tones with a distinctive white-and-black 'T'-patterned tail.

Behaviour

Evening Grosbeaks are often found in flocks, especially during winter irruptions, whereas Thick-billed Longspurs perform a unique aerial display during breeding season.

Habitat

Evening Grosbeaks inhabit forests and are known for impacting forest insect populations, while Thick-billed Longspurs prefer open, shortgrass prairies and similar habitats.

Voice

Thick-billed Longspurs are known for their tinkling, warbling song during aerial displays. Evening Grosbeaks have a distinctive call but are not noted for elaborate song displays.