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Surf Cinclodes in Peru -
Superciliaried Hemispingus in Peru -
Sungrebe in Peru -
Streaked Tuftedcheek in Peru -
Streaked Saltator in Peru -
Streak-throated Canasteroin Peru -
Streak-throated Bush-Tyrant in Peru -
Squirrel Cuckoo in Peru -
Spotted Tanager in Peru -
Spotted Sandpiper in Peru -
Spot-throated Hummingbird in Peru -
Spix's Guan in Peru -
Speckled Hummingbird in Peru -
Speckled Chachalaca in Peru -
Sparkling Violetear -
Southern Rough-winged Swallow in Peru -
Southern Lapwing -
Southern House Wren in Peru -
Southern Beardless Tyrannulet -
Social Flycatcher in Peru -
Snowy Egret in Peru -
Smoky-brown Woodpecker in Peru -
Slaty-backed Nightingale-Thrush in Peru -
Slaty Tanager in Peru