- A Name for the Clade Formed by Owlet-Nightjars, Swifts and Hummingbirds
- Contains a report by George Sangster.
- Apodiformes - Housemartins and Relatives
- Features phylogenetic tree.
- Apodiformes birding.in
- Presents an overview and list of species in the area.
- Apodiformes: Birds
- Find photos, descriptions and information about swift-like birds and hummingbirds.
- Basic Fact Sheets Ruby-Throated Hummingbird
- Discusses characteristics, habits, sound, feeding, breeding and conservation.
- Biokids Swifts and Hummingbirds
- Presents an overview. With photos.
- Bird Species in Israel - Order Apodiformes
- Lists species found in the area.
- Bird Web Swifts and Humming birds
- Presents description and species found in Washington State.
- Birdnet Apodiformes Species List
- Contains a listing of member birds.
- Birdnet Apodiformes Swifts and Hummingbirds
- Discusses subgroups. Includes links to species list.
- Birds of Upper Newport Bay, Orange County, California Apodiformes
- Lists species found in the area.
- Facts About Hummingbirds
- Provides data on characteristics, life span, ecology and conservation.
- Flash of Red The Northern Cardinal
- Discusses characteristics, range of distribution, diet and feeding. With links.
- Hummer Bird Study Group Inc.
- Discusses mission, history, activities and events. With membership guide.
- Hummingbird Website
- Presents a database on topics about this species.
- Hummingbirds.net
- Provides information on watching, attracting, feeding and studying this species.
- ITIS Report: Apodiformes
- Provides information on taxonomy, hierarchy, status, and nomenclature.
- Life of Birds Apodiformes
- Features families, common names, number and description.
- Natures Little Jewels Hummingbirds
- Discusses flying speed, migration, range and distribution and natural enemies. With links and photos.
- North American Bird Sounds
- Contains sound clips and photos.
- Oklahoma's Summer Jewels: Ruby-throated Hummingbirds
- Details include species overview, nesting, breeding, other state species, feeder basics, and how to help.
- Operation Ruby Throat
- Contains searchable database globe related to behavior and distribution. Welcomes contributions.
- Order Apodiformes
(hummingbirds and swifts)
- Contains a taxonomic tree. With links to related sites.
- Phylogeny of Early Tertiary Swifts and Hummingbirds (Aves: Apodiformes)
- Presents mechanics, results and discussion. With abstract.
- Tolweb Apodiformes
- Presents photos of member species. With taxonomic diagram.
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