Duuuude, how cool to be so close to those deer! Here it's only possible to see them inside farms, and it's kinda luck to spot one.
Have you tried letting the dog walk by yourside while cycling? Maybe he'll be tired enough to enjoy the trailer; or you could try an open trailer before.
It's strange though, my dad's dog used to be really annoying travelling on our station wagon's trunk, he barked and wanted to move to the front seats. But dad insisted, until one day the dog learned, now he travels pretty quiet, we even forget he's there.
He will bolt left or right to chase cats so I wouldn't trust him while riding. He's pulled me off my feet in the winter. I tried opening the top and he leaped out despite being leashed, almost choking himself. I don't think I should just keep taking him as it's stressing him out to be so worked up. You would think someone was hurting him with all the noise he's started making. It's so weird as he was enjoying this. He even gets excited and jumps right in when I put the trailer on my bike. He starts yelping as soon as I start moving it.
That's really odd, what on earth made him change his mood, there must be something annoying him over time.
Wishing for you to find out, it may be really cool to travel with a dog as companion.
I thought maybe it was the heat, but I took him out at 6am the other morning and he still hated it. We drove near a highway once, the sound of which set him off, but I've been taking him to quieter streets and it makes no difference.
It sucks, because this was part of my plans for summer touring and riding. I mean I wasn't sure if he could handle long term but I was planning on taking him along for some trips closer to the area at least.