I like birdwatching! It can be a very fun recreational activity or citizen science.
My boss loves it too. I don't know much about it, although I do enjoy seeing unusual birds from time to time. 
I like it because you don't necessarily need anything special to birdwatch, unless you would like to buy binoculars or a telescope. But they aren't necessary!
Do you use bird feeders or anything else to attract them? I know some people like to attract hummingbirds to their gardens. 
I do! I have a very nice birdfeeder in my yard that my grandfather built. It attracts all kinds of different birds!
We have one that the squirrels keep getting into!
Yep, squirrels will get into the bird food, I guess they enjoy the same things! I enjoy the auditory aspects of birds, their singing etc
Some have very distinctive songs. I guess when you're really good at this you know the bird just by hearing its song.
the study of birds using formal scientific methods.
Birding, birdwatching, and twitching.
The first recorded use of the term "birdwatcher" was in 1891; "bird" was introduced as a verb in 1918. The term "birding" was also used for the practice of "fowling" or hunting with firearms as in Shakespeare's "The Merry Wives of Windsor" (1602): "She laments sir... her husband goes this morning a-birding." The terms "birding" and "birdwatching
so fantastic. I've just slid in like I've been there all my life. It's been fantastic fun. And it's a character who you can do anything you want with - I love those! It's very easy work." Asked whether if he will watch his first, he replied: "They've got me in the last scene of the day at work today, so I don't know if I'm going to get home in time for it! But all the family are there watching