Australian Cattle Dogs

Hi... new to the forum and ACD ownership... we are already in love with our rescue dog, Sydney, who's been with us about 3 weeks now.

I've noticed that when I walk her on walking trails in the woods that she has an almost insane aversion to crossing wooden footbridges. Eventually -- after she watched several other dogs cross the bridge, she was able to do it, but I don't think she liked it.

Sydney is 8 months old, and was with the same rescue family for the previous 3 months, so it seems unlikely that she had some sort of traumatic experience.

I'm wondering if there is some breed-specific fear going on.

Anyone have a thought about this?

Thanks!