Valmiki Ramayana Kishkindha Kanda Sarga 42 Shloka 16
Original Shlokaतस्य प्रस्थेषु रम्येषु सिंहाः पक्षगमाः स्थिताः। तिमिमत्स्यगजांश्चैव नीडान्यारोपयन्ति ते।।4.42.16।।
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तस्य its, रम्येषु beautiful, प्रस्थेषु slopes, पक्षगमाः with wings, सिंहाः lions, स्थिताः are sheltered, ते they, तिमिमत्स्यगजांश्चैव whales fishes and elephants from the sea, नीडानि in their shelters (caves), आरोपयन्ति place
'On the slopes of that mountain you will find lions called Pakshagamas, that is lions with wings. They carry the whales, fishes and elephants from the sea to their shelters on the beautiful mountain slopes.