UTIAS Snowbird
... that the UTIAS Snowbird is the first ornithopter powered by human muscles to be capable of straight-and-level flight?
... that the <b id="mwCXI"><a href="./UTIAS_Snowbird" id="mwCXM" rel="mw:WikiLink" title="UTIAS Snowbird">UTIAS Snowbird</a></b> is the first <a href="./Ornithopter" id="mwCXQ" rel="mw:WikiLink" title="Ornithopter">ornithopter</a> powered by <a href="./Human-powered_aircraft" id="mwCXU" rel="mw:WikiLink" title="Human-powered aircraft">human muscles</a> to be capable of straight-and-level flight?