crazael said: this is obviously meant to refernce a hatching tit (bird) aswell.
read the description on the pixiv page and explain to me how it's obvious he's making a pun on an english word for breast and an english word for a species of bird which no one on pixiv is going to get
it's not a reference to anything, the guy just draws weird shit, look at post #530687 and post #416987