There are parts of Nightbirds that I really enjoyed and parts that seemed convoluted and pulled away my attention.
Positive: I enjoyed the FMC. The concept behind the novel of magical prohibition and the setting were great ideas and probably what kept my attention the most. I look forward to seeing what comes next. I actually enjoyed it.
Negative: There are a lot of characters, many that aren't fleshed out, that readers should be keeping up with or caring about, but I really didn't. I am sure this a me thing. The magic system seems unclear, but this could be a plot point since it isn't something the MC really understands at this point.

Overall, fans of YA fantasy will find something to enjoy in reading this book.