An A-Z Story - C

Day 3 of the A-Z Challenge - how's everyone doing so far?

My theme is as follows: each day I will ask for words beginning with that day's letter, which I will randomly select five from to use in a sentence in an ongoing story. That sentence will be posted the next day when I'll ask for words for the next letter. So my Z sentence will appear on May 1st.

Crazy thanks for the many and varied suggestions yesterday! Out of a total of 234, random.org has selected the following five:

Boggart (suggested by Clare Dugmore - defined by Dictionary.com as a Northern English dialect word for a ghost or poltergeist - thanks, I didn't know this one!)
Bird (suggested by Ella)
Brainiac (suggested by Susan Gourley/Kelley)
Belligerent (suggested by Melissa Sugar who also nominated 23 other words - mad props to you!)
Beginnings (suggested by The Golden Eagle)

And here is the story so far including my B sentence:

Angels had always had a certain ambiguity, being both human and divine, reflected Acatour with an acute sense of malaise as he looked down on the arable fields of medieval England.  A bird flew past making a belligerent shriek, unnerved it seemed by a boggart; Acatour descended, thinking it would take a brainiac like him to unravel the poor soul’s beginnings and why it had not reached Heaven.

Can I have your C words, please! I can't wait to see what happens next. To refresh, you can offer as many as you like, and they can be as obscure and outlandish as you like (feel free to use a dictionary for inspiration). The more words you suggest, the more chance you have of one being picked. It doesn't matter if you suggest the same word as someone else (as I know not everyone always has time to read all the comments); each will count as its own entry.