Mystery bird (well a mystery to me)

I was taking some photo's of a magpie and magpie lark hanging out together ans just as the sun was leaving for the night I noticed another bird sitting on the power lines. Having to zoom and little light my pictures are not the best but I was wondering is anyone has any ideas? The only bird I can find with simular features is the Australasian figbird but I am soo not sure. Picture taken south brisbane QLD (on a rainy arvo)