Is it a bird? Is it a plane? I could hardly believe my eyes when I saw this cool photo of a crow landing on an eagle.

Hyongchol Kim / Caters News Agency

Photographer Hyeongchol Kim captured the moment while photographing birds on the plains in Gyeonggi-do, South Korea.

According to Caters News, the photographer was stunned when he saw the smaller bird swoop in on the eagle and perch himself on its back.

He said: "I saw the crow flying towards the much bigger eagle, and prepared myself to capture the fight on camera. However, the bird just hovered above the eagle for a few seconds - and then appeared to just latch onto his back.

"The eagle didn't seem to mind at all - I think they must have been friends."

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TODAY.com multimedia producer Mish Whalen wonders if her two parakeets ever think about flying on each other's backs.

WGRZ.com reports: "In an unlikely twist of fate, an adult deer has befriended the mother goose, taking over the role of protector."

What do you think?  Is this a match made in heaven, or just a weird animal kingdom coincidence?

Craig Cygan courtesy of WGRZ.com

A deer seems to protect a mother goose who lost her mate in a cemetary in Buffalo, NY.

Read the full story from WGRZ here, and watch the video below.

Craig Cygan courtesy of WGRZ.com

A deer seems to protect a mother goose who lost her mate in a cemetary in Buffalo, NY.