After taking a 101 Birding course in 2019 with Anthony Kaduck, newbie bird nerd Jenny Newton initially had difficulty identifying small birds because she just didn’t know the differences between sparrows, warblers and others.
So she decided to create a Perch Bird Cheat Sheet for Ontario birds sorted by colour and size. It worked for her!! Today, there are 17 cheat sheets of Ontario birds (e.g. ducks, owls) all with photos sourced from Macaulay Library available for both learning and as a refresher.
Just follow this link to download them.