Costa Rica. Monteverde. Swallows (1 Viewer)

[testoduro]

Hello, again. Pics taken recently in a hotel near Monteverde, the birds sharing the roof in harmony at the same time. The fact that they look like juveniles makes it a bit difficult for me. My guidebook does not really show juveniles.

1,2 Blue-and-white swallows? I guess there is no trace of blue on account of being chicks?
3,4 Gray-breasted martin? Lack of blue for the same reason?

Or maybe they are all Blue-and White in different stages of development? I don't know.

Thank you!

 

[THE_FERN]

Yes I think you're probably right. The last 2 are not blue and white for at least 2 reasons: vent/crissum area is white (not dark), and larger bill/head shape. (So=grey-breasted Martin)

I think the first 2 are blue and white. Can't be sure but vent looks clouded/dark, face mask crisply defined with clear white.

 

[testoduro]

Thanks, The Fern!