Just post them anyhow - I have no idea what my camera does? I just posted on the off chance they might be ok? The thing is it gives you a chance to show of your birds and that can;t be a bad thing. So just put them up there!
Oes
The requirements were very clear:
"at LEAST 3,000 pixels wide & 2,000 pixels tall"
and the LEAST is bold and caps, I'm pretty sure they know what they want. The issue is that anything smaller will not blow up to calendar size without being grainy.