Pretty Little Songbird

 I heard the sweetest little song and stepped outside to see this little guy hanging out in the Desert Museum.  He was singing away so sweetly.  I have no idea what type of bird it is but I thought I'd post it and see if anyone could identify him.  

 Here is a shot of his back side if that helps.  I realize these aren't the best photos.....

 Two side views where you can see his red front/breast. (above photo and below).

He flew away after a customer walked near the tree and stopped over on the fence line and I got a few shots of him there as well. 

 Below he's like puffed up.  He was so cute!!!

Anyone know what kind of bird it is?

I hope he comes back tomorrow so I can get better shots, but wanted to post in case anyone knew what it was!!!
Thank you Shirley at Rock Oak Deer for identifying it- it is a House Finch!!!!
And thank you to Steph at Rambling Wren as well for helping me to know what kind of bird it is!!!  Learn something new every day!