Head to head
White-collared Swift vs Great Dusky Swift
White-collared Swift
VS Great Dusky Swift
Both are large swifts that choose well-protected, hard-to-reach nesting sites, but one is more flexible in its choice of shelter.
| White-collared Swift | Great Dusky Swift | |
|---|---|---|
| Scientific name | Streptoprocne zonaris | Cypseloides senex |
| Conservation status | Least Concern | Least Concern |
| Nesting site | Caves, crevices, and behind waterfalls | Behind waterfalls exclusively |
| Distinguishing feature | Bright white neck collar | Dusky grey-brown plumage |
| Range | Mexico through much of South America | South American mountain regions |
| Body size | One of the larger swift species | Large swift |
| Nest site flexibility | Multiple sheltered site types | Waterfalls only |
| Diet | Flying insects | Flying insects |
White-collared Swift vs Great Dusky Swift: common questions
Which swift is more flexible in choosing nest sites?
The white-collared swift is, using caves, cliff crevices, and waterfalls, while the great dusky swift nests exclusively on ledges directly behind falling water.
How can you tell these two swifts apart?
The white-collared swift shows a bright white band around the neck, while the great dusky swift has overall dusky grey-brown plumage without a distinct collar.
Do both swifts nest behind waterfalls?
Yes, both use waterfall sites, though the white-collared swift also uses caves and cliff crevices, while the great dusky swift depends on waterfalls exclusively.