Sorry to bump this back up - Chaz wasn't working for me last night.
Erin - IIRC the BCs and ESs share very similar roots, and ESs contributed to the early Aussies. That's if I'm remembering correctly. We get a lot of Aussie and Border Collie guesses! More BC than Aussie though, I guess because she doesn't have a lot of coat and/or isn't merle. We get Toller guesses quite often too I guess because she's orange
She'll be 7 months old in 5 days. TBH I'm not sure how much she weighs, as I don't have a scale and she hasn't had to visit the vet in awhile. I'd guess around 40 pounds though? Last time I measured her she was around 19", she may have grown .5" or so since then.
She's turning out to be a good ambassador for her breed. Someone at work yesterday absolutely flipped out over her - she lost her Aussie/Sheltie a few months ago and really liked Quinn. Asked me a million questions about them, asked if we were planning on breeding Quinn, and wrote down her breeder's name as they're expecting their last litter for a few years this spring.
Thank you all so much! <3 I'm grinning ear to ear. She's a great dog.