Summer Approacheth!

With summer approaching the birds are really out in force at the moment.  It's lovely to see and I'm still getting used to seeing exotic looking parrots and things just hanging around on the balcony.  Just a moment ago there were a couple of birds out there with major quiffs going on.  They were about the size of sparrows but had these little mohawks on their heads.  Amazing.  I really should get a bird book or something so I can identify all of these creatures.  So I'm happy to see all the birds out and about again but they're causing me some major confusion in the evening as they're still singing when it gets dark.  In fact last night they were still chirping away at about 9.30pm.  I associate birdsong with waking up, daylight, a walk in the park, Snow White.  Therefore to hear the birds chirping away whilst I'm in bed reading my book I have to wonder if I've somehow fallen asleep without realising it, woken up in the same position but with dawn breaking.  No, it's still the middle of the night.  I thought birds had some sort of curfew.  Like they had to be tucked up once the sun is down.  Obviously not!