Behavious during walking

For the past few nights, I have walked Teagan between 9 and 11:30pm - and obviously is it dark.

She is so well behaved, it's unbelieveable!
In the day, she pulls.
At night, she heels! She doesn't act differently in any other way!
Her movements are the same, she is as alert as she is in the day time etc.

Just wondering if anyone elses dogs act differently at night/during the day?!

Also, anyone know why she is good? lol

Star is more aware of her surroundings at night and more protective.

Perhaps Teagan is being more protective over me, by staying by my side then?
She is the same in every other way, but the lead is slack! lol

max is actually more like that when it is dark aswell hevvur i dont know what it is i just thought it was because he is a big girls blouse

Most animals eyes are less effective at night, so they concentrate more to take in their surroundings, generally using all their senses more than in daylight, my dogs also react differently at night than they do in the daytime, at night they are not to keen on people with hoods up.