cakora-krauñca-cakrāhva-
bhāradvājāḿś ca barhiṇaḥ
anurauti sma sattvānāḿ
bhīta-vad vyāghra-siḿhayoḥ
cakora-kraunca-cakrahva-bharadvajan ca -- the cakora, kraunca, cakrahva and bharadvaja birds; barhinah -- the peacocks; anurauti sma -- He would call out in imitation of; sattvanam -- together with the other creatures; bhita-vat -- acting as if afraid; vyaghra-simhayoh -- of the tigers and lions.
The word bhita-vat, "as if afraid," indicates that Lord Krishna played just like an ordinary boy and ran with the smaller forest creatures in mock fear of the lions and tigers. Actually, in Vrindavana, the abode of the Lord, the lions and tigers are not violent, and thus there is no reason to fear them.