A-Z of Birds

I have started my Bird Series for Brief 3 and have decided to do an A-Z of Birds for a small book. I started at Z as i already had a Zebra finch all drawn out, so I'm going backwards, making my way to A. I will be putting these into a small book once i have drawn them all and I have already drawn out the following (which you can see below) -

1. Zebra Finch

2. Yellow tit

3. Xantus Hummingbird

4. Warbler Finch