The city of Chicago has to act quick to improve safety on the CTA or risk losing federal funding | Stephanie Wade

There's wading bird action aplenty down on Wader Lake at the moment, with lapwing and oystercatcher chicks growing fast and record numbers of avocet on site in early June. But did you know that our nesting common terns play a key role in the success of it all? Without their noisy chattering and fierce protection of their own nests from predators, other more vulnerable species hunkered down beside them - such as the avocet - simply wouldn't be able to thrive as well as they do. The tern colony pe