Hummingbird

Hummingbird is the het ship between Qrow Branwen and Summer Rose from the RWBY fandom.

Pre-Series
Qrow and Summer were once part of Team STRQ, along with Taiyang and Raven. Summer was their leader. It was inferred by Qrow in volume 3 that him and Summer got along well. Little else is known about their school days at this point in the show. At some point after Raven left Tai, Summer and Tai started a family together. Despite Raven being Qrow's sister, Qrow still maintained a close relationship with Summer and her family, leading to her daughter Ruby calling him uncle.

Even though only Yang is his biological niece. Qrow also seems to have been the one who told Taiyang that Summer was not coming back. This greatly devastated Tai and it is speculated that this is when Qrow started drinking. After Summer's death Qrow became very close with her daughter Ruby. Ruby reciprocated the affections and even based her weapon off of Qrow's scythe.

In the end of volume 3 Qrow eventually told Ruby about her and Summer's silver eyes and the legends behind them. Later in volume 7, Qrow tells Ruby that her mom, Summer would be proud of her. They then further discuss Summer, with Ruby asking Qrow what Summer would have done about Salem after learning the truth about her. Qrow then responds. He then tells her that "Summer was always the best of us, a bit of a brat though, but he likes brats".

Fanon
Ever since Qrow was introduced in volume 3, hummingbird became a semi-popular ship in the fandom, since Qrow resembled Ruby greatly, even more than he resembled his biological niece. People were also suspicious how Ruby admired him so much to the point where she modeled her weapon after him. Even though the creators have confirmed that Ruby is not Qrow's daughter some fans remain skeptical. Then there are some fans who think that Summer and Qrow simply had a similar relationship to Lily and Snape from the Harry Potter series. Some people also believe that Qrow simply had unrequited feelings of love for Summer and he never told anyone about his feelings, not even Summer herself.

Fandom
TUMBLR

Trivia

 * "Hummingbird" comes from the fact that Qrow is named after a bird and hummingbirds are birds. Also hummingbirds are most active in the summer time.