Frank van Drogen
Not so important

I hope the title sais it all
I guess it is the season when there's lots of juveniles around. Recognizing a young Blue Tit or Jay is relatively simple. But there's lots of juveniles where I am at a loss.
There are some drawings of younger birds in Collins, but not enough for my needs. So, I was wondering if there are any other guides or reference works that would be recommended. Even if it would be larger works, that can't be lugged around, I'd be happy to get my hands on one or two to refer to at home.
I guess it is the season when there's lots of juveniles around. Recognizing a young Blue Tit or Jay is relatively simple. But there's lots of juveniles where I am at a loss.
There are some drawings of younger birds in Collins, but not enough for my needs. So, I was wondering if there are any other guides or reference works that would be recommended. Even if it would be larger works, that can't be lugged around, I'd be happy to get my hands on one or two to refer to at home.