Alternative text (alt text) is meant for readers who cannot see an image, such as blind readers and readers who use a text or mobile browser. It should summarize an image's purpose, and should not duplicate its caption. Every image should have alt text, except for purely decorative images, which should instead have "|alt=|link=".
Birdo
The following table shows images and captions on the left, and alt text and captions on the right: the right column is what a visually impaired reader will hear. This table was computed from the copy of Birdo cached on 18 June 2013 at 22:34.
| Image and thumbnail | Text description |
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 | Birdo in Mario Party 9. Birdo is a pink anthropomorphic creature with a large mouth, who wears a red bow and a diamond ring.
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The North American manual first described Birdo as: "Ostro- He thinks he's a girl and he spits eggs from his mouth. He'd rather be called Birdetta."
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Birdo in Super Mario Bros. 2. Birdo is able to shoot eggs out of her mouth, which the player's characters may jump on to ride or pick up.
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 | Book icon
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 | Portal icon
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 | Portal icon
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 | Portal icon
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 | Wikipedia book
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| Wikipedia book
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 | Portal
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