My horse's corral is across the road from the brahma bull and the steer. I have witnessed her laying down taking a nap in her corral right out in the open with the brahma bull and the steer grazing in the corner closest to her. No problem. They are her neighbors. She thinks they are safe and trustworthy enough to lay down and snooze in front of at dusk time.............But sometimes when the sun shines bright or the moon, it doesn't matter if it is cloudy or raining....sometimes when you least expect it........the brahma bull and steer become THE DEVIL!!!!!!AHHHHHHHH RUN!!! FREAK OUT!!! Doesn't matter who you trample, just RUN AWAY!!!!
She has let the resident goat eat out of her hay basket. She will tolerate the goat. The goat is OK with her. That is the pigmy grey goat. But the floppy ear goat.........once again THE FLOPPY DEVIL!!! RUN AWAY!! Then stop and turn and stare with the whites of the eyes showing and snorting and repeat above.
Horses are horses. They see things very different than we do and they spook at what we consider nothing. To them it is something. Movement of any sort gets them as does things far away on hills, or goats on the roof. That was a bad day.
Anyway, it is normal, I think for a horse to be extra spooky especially in a new enviornment and with all the starving etc.
If it was me, I would wait before trying to saddle him again and just hang out for a week or so doing some low stress ground work like halts etc. But that's me and I am in no way an authority on anything horse related.
It was great that you have given this horse a home and care so much for him. Lucky horse.