B3I1R1D2W4A1T1C3H4I1N1G2S1
25 points
BIRDWATCHINGS is validvalid
BIRDWATCHING, the act of birdwatching [n]
BIRDWATCHING, the occupation of watching birds [n]
BIRDWATCHING, the act of birdwatching [n]
BIRDWATCHING, the occupation of watching birds [n]