Go ahead! Stretch your e-magination and test yourself. Click on the right answer and get the full scoop. Get it wrong—try again. They’re white storks.   They’re gulls perched on gray brick.   These birds aren’t actually roosting. They’re flying past the windows of a Lisbon high-rise.   They’re white doves viewed from the bottom up. What peaceful creatures are roosting on this roof in Lisbon? Hint: It’s not birds’ eyes you see. Photograph by Nate O. Johnson, Orion Photos

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