अमित्राटवीसंचारं च राज्ञो गृहकपोतैर्मुद्रायुक्तैर्हारयेत्धूमाग्निपरम्परया वा ॥ कZ_०२.३४.११ ॥
amitrāṭavīsaṃcāraṃ ca rājño gṛhakapotair mudrāyuktair hārayet dhūmāgniparamparayā vā
彼は、敵が森の中を移動する情報を、封印付きの標識を携えた飼い鳩によって、あるいは煙と火の連続信号によって、王に伝達すべきである。
To authenticate origin and prevent tampering or spoofing—an early form of message integrity and sender verification.
Faster broadcasting across fixed points and less dependent on animal handling; pigeons are better for discrete point-to-point transmission.