Valmiki Ramayana Aranya Kanda Sarga 14 Shloka 18

क्रौञ्ची Krounchi, उलूकान् owls, जनयत् gave birth to, भासी Bhasi, भासान् Bhasa birds, व्यजायत delivered, श्येनी Syeni, सुतेजसः very bright, श्येनांश्च Syena birds(hawks), गृध्रांश्च Vultures, व्यजायत gave birh to, धृतराष्ट्री तु Dhrutharashtri too, हंसांश्च Swans, सर्वशः all types of swans, कलहंसांश्च waterbirds of sweet note.

Krounchi gave birth to owls, Bhasi to Bhasa birds, Synei to bright hawks and vultures, Dhrutharashtri to swans and chakravakas with sweet notes.