Hedge trimming


I am sure it has been answered a thousand times but I have a hawthorn hedge on two sides of my garden and a privet on the other. Due to having a new baby I wasn’t able to get out and sort the hedge out last year. I don’t believe there are any birds nesting in it as it has not developed any foliage yet. If I give it a quick trim this week is that okay? We have had birds nest in it previous years and I always leave it until the last week in September to tackle.