Lark ID questions, Spain 2019 (1 Viewer)

I've come across quite a few larks this year, but some of them are less easy to ID than others. I'm fairly confident that I've seen Thekla's several times, given the songs, calls, underwing patterns and habitats of the birds involved, but I'd like to be able to tell if any of my pictures show this species (and not Crested Lark, which was quite abundant and which I've seen many times before), as I didn't have previous experience with it.
The ones in the pictures below were spotted in olive groves on the slopes of a hill in southern Extremadura, Spain, June of this year. Apologies for the low resolution, the images were heavily cropped and my camera isn't the best. I hope some of the relevent details will be visible nonetheless.

The first two pictures show Thekla's I reckon. The bird in flight is more difficult - warm tones to uwcs suggest Crested, if it can be trusted.

Simon Wates said:

The first two pictures show Thekla's I reckon. The bird in flight is more difficult - warm tones to uwcs suggest Crested, if it can be trusted.

Click to expand...

Thanks :t: Regarding the third, I was initially convinced - not having looked closely at the shot - that it was a Greater Short-toed Lark (there were several of those around, and we did manage to get notes and pictures), but I guess the chest pattern should rule that one out.