Dichotomous Key/Spheniscidae
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Key to Spheniscidae
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edit- Eudyptes schlegeli (Royal Penguin): Some or all of head is white.
- 6: Head is entirely black.
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edit- Eudyptes schlegeli (Royal Penguin): Part or all of head is white.
- 5: Head is entirely black.
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edit- Eudyptes chrysolophus (Macaroni Penguin): When dry, some of crest is pointed well above the horizontal.
- Eudyptes filholi (Eastern Rockhopper Penguin): All of crest is more or less horizontal or below.
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edit- Megadyptes antipodes (Yellow-eyed Penguin): 80 centimeters or less in length.
- 9: Length is over 80 centimeters.
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edit- Pygoscelis antarctica (Chinstrap Penguin): Face is white with a single thin black stripe resembling a chin-strap.
- 10: Face is alternating black and white, but not white with a single thin black stripe.
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edit- Aptenodytes forsteri (Emperor Penguin): Head and neck only slightly yellow; Height is over 100 centimeters.
- Aptenodytes patagonicus (King Penguin): Head and neck have bright orange-yellow spots; Length is less than 100 centimeters.
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edit- Pygoscelis adeliae: Head completely black except for small white ring around eyes.
- 13: White coloration present above and/or around eyes.
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- ?Eudyptula albosignata?, White-flippered Penguin? subsp of E. minor?
- Eudyptula minor, Little Blue Penguin
- Spheniscus demersus, African Penguin
- Spheniscus humboldti, Humboldt Penguin
- Spheniscus magellanicus, Magellanic Penguin
- Spheniscus mendiculus, Galapagos Penguin
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edit- Pygoscelis papua: Head black except for white splotch above eye; 75-90 centimeters in length; Birds of Antarctica.
- Spheniscus mendiculus: Head various coloration, but usually with a white stripe going from the edge of the eye and curving back around to the chin; 50 centimeters in length; Birds of the Galapagos Islands.
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edit- Eudyptes pachyrhynchus: Pink skin absent at base of bill; Usually with whitish stripes on cheeks.
- Eudyptes robustus: Pink skin present at base of bill; No stripes on cheeks.
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