Have you Ever Met A Stalk-eyed Fly?

Stalk-eyed flies (family Platystomatidae) are common visitors to the bird-feeder during the rainy season where they are attracted to fruit. Several species are involved. Males have characteristically-shaped heads that are used in ritualistic mating displays. They have an unusual gait and are very easily approached.

Reference

McAlpine, D. K. 1972. The Australian Platystomatidae with a revision of five genera. The Australian Museum, Memoir 15. Pp.1-256