Black-fronted Tern vs Antarctic Tern

The Black-fronted Tern and the Antarctic Tern can be distinguished primarily by their plumage and distribution. The Black-fronted Tern has a distinctive black forehead and is typically found in New Zealand, while the Antarctic Tern is circumpolar with varying plumage across populations.

Look for the black forehead of the Black-fronted Tern. Consider the geographic location: New Zealand suggests Black-fronted Tern, while circumpolar regions suggest Antarctic Tern.

The Black-fronted Tern has a black forehead which is a key distinguishing feature. In contrast, the Antarctic Tern's plumage varies significantly across its populations, making it less reliable for identification.

The Black-fronted Tern is typically found in New Zealand, whereas the Antarctic Tern is circumpolar and its populations may be migratory or resident.