Hello,
It's great to see your enthusiasm about both gardening and, of all birds, the wren! A little explanation: I love gardening and try to pass that love to my 3 growing-up children. And on top, the oldest and youngest of my kids have autism. Whereas the oldest, a girl, 11y old, loves cars, the youngest, 6y, a boy, loves birds, and is especially fond of the wren, don't ask me why. It's a blessing, his obsession with birds and the wren in particular: we've recently installed 5 "houses" for the birds in our garden, and are now planning to planting much more bushes and flowers in order to attract even more birds. We live in the centre of Belgium (just east to Brussels), so there are plenty of wrens, magpies, sparrows, and the lot, but most of all titlings. The blue tits are building a nest in the garden!