Knowing when a bird sings is just as important as why and how.

Use your brain to contextualize, recollect, and formulate BEFORE using your fingers or mouth to execute. Sage advice.

Birds

Birds sing loudest and liveliest during the dawn hours.

Birds sing to impress other birds.

Birds sing to attract a mate.

Birds sing to intimidate other birds.

Birds sing to proclaim their territory is defended.

Birds both sing and call.

Bird songs are used more for the above mentioned purposes.

Bird calls are used more for warning other birds of danger or to locate another bird.

Each species of bird has it's own unique set of calls and songs that make up it's language.

Each individual bird in a species also has it's own unique flair on the language.

Birds sometimes sing/call two notes at once.

Songbirds can learn other birds' songs/calls.

Birds learn how to sing early in life from listening to other birds.

What have we learned?

Mirror birds/MSM: Birds sing early in the morning. Nobody really knows why, but that's when they're all the loudest and that's when they all do it. Predictably, it's the same routine every single workday. Other than the "Dawn Chorus", birds sing for a variety of reasons, mostly self-gratifying and stingy. The long, drawn out melody that is indicative of the bird's loyalty to the subject; it's passion towards delivering a message. There are also 'calls', which tend to be just short, loud, sharp warnings to one another.

Calls seem to be understood by all bird species.

When a bird sings, you can either look at when it's singing or what it's singing, but each bird sounds a little different, and sometimes says 2 things at the very same time which can confuse or disorient. And let's not forget that birds only learn from other birds, and some even know how to sound exactly like other birds they've heard before, fooling everyone around them, while they remain vicious predators to their own kind.

Be careful who you follow.

Birds are not complicated creatures.