For a beginner you did fairly well. Especially considering that you have perhaps 3 of the most difficult aspects to capture - dark birds, white/light birds in sunlight, and birds in flight.
Welcome to the forum. Stick around and you'll learn tons.
Very good. I'm still looking for my first Bird In Flight. Were these taken with the Sigma lens or the beercan? - TF
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I am no better than you. I critique to teach myself to see.
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Feel free to edit my photos or do anything else that will help me learn.
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Sony/Minolta - way more gear than talent.