හවුල් ශ්‍රව්‍ය

“Ever wondered how spies sent secret messages… using pigeons… and no one could ever trace them?” “Step 1 — pick a curious, alert pigeon. Not just any city bird… one that actually trusts you. Step 2 — feed it every day, hand-feed it, talk to it… make it your tiny spy buddy. Step 3 — give it a home it can recognize. That’s its GPS — pigeons always come back. Step 4 — take it a few meters away, release it… and watch it fly straight back. Step 5 — tie a tiny note to its leg. Boom — your message is