** Thunderbird Resources soars as much as 42.1% to A$0.027; biggest intraday pct gain since mid-March

** Stock hits its highest level since Sept. 3

** Mineral explorer buys Kooky Resources, which holds stake in antimony and gold exploration land package in New South Wales

** Says exploration portfolio adjacent to Australia's largest antimony deposit Hillgrove Gold and Antimony Project

** Did not disclose complete deal value

** Stock logs busiest session ever, with more than 22 mln shares traded - ~46x the 30-day avg

** THB down ~70% YTD

(Reporting by Kumar Tanishk in Bengaluru)

((Tanishk.Kumar@thomsonreuters.com;))