Birds › Gulls, Terns, and Skimmers
Caspian Tern
Hydroprogne caspia
28 photos
Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.
Photos you add are credited to you, and you keep the copyright.
Easily confused with
Royal TernThalasseus maximus
Common TernSterna hirundo
Elegant TernThalasseus elegans
Forster's TernSterna forsteri
Great Crested TernThalasseus bergii
Arctic TernSterna paradisaea
Black SkimmerRynchops niger
Lesser Crested TernThalasseus bengalensis
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| Alaska | 325,473 |
|---|---|
| New York | 197,962 |
| Texas | 131,953 |
| Virginia | 80,137 |
| Maryland | 76,084 |
| Ohio | 74,842 |
| New Jersey | 62,197 |
| Wisconsin | 46,614 |
| British Columbia | 41,736 |
| Indiana | 35,300 |
Counts show where people looked, not only where it lives.
Traits
Group and habits
- Ground nestingListed by a harvested source as nesting on the ground.BIRDBASE avian traits database
- Scrape nestingListed by a harvested source as nesting in scrapes.BIRDBASE avian traits database
- Fish eaterListed by a harvested source as primarily eating fish.BIRDBASE avian traits database
Classification
| Kingdom | Animals · Animalia |
|---|---|
| Phylum | Chordates · Chordata |
| Class | Birds · Aves |
| Order | Shorebirds and Allies · Charadriiformes |
| Family | Gulls, Terns, and Skimmers · Laridae |
| Genus | Caspian Terns · Hydroprogne |
Study it in a deck
- Birds of British Columbia, Canada
- Birds of Ontario
- Birds of Oshawa, Ontario, Canada
- Birds of Pennsylvania (Alkas)
- Birds of Toronto, Ontario, Canada
- Birds of United States
- Birds of Utah
- Native Birds of Ottawa, Ontario, Canada
Or build your own from the species near you.
Sources
- Names, taxonomy and observation counts: www.inaturalist.org
- Photos and recordings: the creator and source are on each one.
- Traits: BIRDBASE avian traits database (CC BY 4.0)
- How much to rely on each source
Remember the name next time.
Practise Caspian Tern with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.