Rasarnavasudhakara 3.216

3.216

strīṇām aśikṣita-paṭutvam amānuṣīṣu
sandṛśyate kim uta yāḥ pratibodhavatyaḥ |
prāg antarikṣa-gamanāt svam apatya-jātam
anyair dvijaiḥ para-bhṛtāḥ khalu poṣayanti ||

The untaught cleverness of females is observed even among non-humans;
what need to speak of those possessed of reason?
Cuckoos indeed have their own offspring nourished by other birds
prior to their taking flight into the sky!

3.216.p1

[a.śa. 5.22]

3.216.p2

atra para-bhṛtānidarśanopabṛṃhitena strītva-hetunā mṛṣā-bhāṣaṇa-lakṣaṇasyārthasya niścayo hetv-avadhāraṇam |

Here, the ascertainment of the matter whose nature is false speech, by means of the reason of being female, supported by the example of cuckoos, is determination by cause.