This heart-warming video shows a young woman who spent four days outside gaining the trust of an abandoned rabbit.

25-year-old Alicia Castro spent all day, every day, trying to catch the pet rabbit that had been dumped outside her apartment.

She endured freezing temperatures and talked to the rabbit while leaving food, before finally coaxing him into a crate.

Alicia, from Montana, said: "Tons of people knew the rabbit was there! A few said they tried to catch it but nobody really cared enough to do anything.

"With the cold weather incoming, I knew that time was important and I'd feel so guilty if I didn't do anything.

"Once I looked in his eyes I knew that I had to save him, no matter what it took.

"It was very stressful. I was sick and it was barely above freezing.

"Everyday I would sit outside in the cold with him, gaining his trust, feeding him, and trying to get him to climb into my crate.

"Filming [and sharing] the process felt pretty normal for me, but it was great to have so much helpful advice. At first I just had a towel to grab him with but by day four, I had proper food, a crate, and knowledge that made rescuing him possible.

"Day three was definitely the hardest. I was so frustrated and started to worry that I would never catch him, not only letting down this poor, helpless rabbit, but also the millions of people who were watching along too."

Alicia's patience paid off and the rabbit, now named Bunny, is living the life of cozy luxury.

"I called every Humane Society in the area," Alicia says, "and they were full, so I planned to foster him until we could find him a good home." But the more time she spent with the rabbit, the more she fell in love with him.

"My partner and I have a cat, Kiki, who we adopted four years ago, so we knew we could only keep him if they could coexist.

"We spend every day acquainting them and getting them used to each other. I'm so happy with the progress we've made."

Her advice for others who might find an abandoned pet animal in need of help?

"Even if it's hard, even if it takes time, don't give up. There are so many animals that need help and don't have anybody to stand up for them, so be that person."

(WATCH the video for this story below.)

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