Shiva Purana

siva.sh/siva-purana/uma-samhita/41/33

निवृत्तिनिर्वृताश्चैव शकुना नामतः स्मृताः ।। ते ब्रह्मचारिणस्सर्वे शकुना धर्मधारिणः ।। ३३।।

sanskrit

They were birds only in name. They were holy b?xhelors delighted in renunciation. They were birds practising sacred rites.

english translation

nivRttinirvRtAzcaiva zakunA nAmataH smRtAH || te brahmacAriNassarve zakunA dharmadhAriNaH || 33||

hk transliteration by Sanscript