1. At Camden Lock Laura and I spot what looks like a wagtail, but it has a bright yellow bum. Looking at the always useful RSPB bird guide, I think it's a grey wagtail.
2. At London Zoo, I love the quiet after a shrieking, chattering, excited school party has gone past and then away.
3. To watch Alec marvelling at wonders -- although his wonders are not always the things that we've paid to see: a narrow boat chugging under the canal bridge. A low wall that he can walk along. A bead curtain in the butterfly house.
4. I am concentrating on this butterfly because it is a blur, except for the black dots on its wingtips. When it settles I understand: its wings are transparent.
5. When I look up from the Evening Standard I have picked up from the seat across the aisle (a voice has been saying "Alec Mummy me!" for the past two articles) I see that my little boy has spread a copy of Metro across his knees and has got a bit excited by a picture of a steam train.
