Maybe you've heard of Green Lantern Tomar-Re, the Xudarian Green Lantern who kind of looks like a cross between a human, a bird, an elf, and a swordfish. He debuted in the 60's, I think, and eventually he died and had his ring passed down to his son, Tomar-Tu, who looks just like him.
Well, when Grant Morrison, the writer of The Green Lantern (the only ongoing Green Lantern comic on the shelves), must want it to be explicitly clear that Xudarians look like birds, because he created Trilla-Tru, a busty Xudarian Green Lantern who likes to make bird puns and say bird-like things.
I don't have anything deep or cool to say about this. I just think it's weird, and not in a normal Grant Morrison-y way. I don't know if he thinks Trilla acting this way is funny or if he's hanging a lampshade on how ridiculous he thinks Xudarians look. But he also created a Green Lantern whose head is a volcano, so it's hard to read this guy (in more ways than one).
Two of these images are definitely from The Green Lantern vol. 1: Intergalactic Lawman. The other two are either from that one of the following two volumes in Morrison's series.