Dawn chorus may refer to:
The dawn chorus occurs when birds sing at the start of a new day. In temperate countries this is most noticeable in spring when the birds are either defending a breeding territory or trying to attract a mate. In a given location, it is common for different species to do their dawn singing at different times. In a study of the Ecuadoran forest, it was determined that birds perching higher in the trees and birds with larger eyes tend to pipe up first. These correlations may be caused by the fact that both would also correlate with the amount of light perceived by the bird.
Moller used a play-back technique to investigate the effects of singing by the black wheatear (Oenanthe leucura) on the behaviour of both conspecifics and heterospecifics. It was found that singing increased in both groups in response to the wheateater and Moller suggested the dawn (and dusk) chorus of bird song may be augmented by social facilitation due to the singing of conspecifics as well as heterospecifics.
The electromagnetic dawn chorus is a phenomenon that occurs most often at or shortly after dawn local time. With the proper radio equipment, dawn chorus can be converted to sounds that resemble birds' dawn chorus (by coincidence).
The electromagnetic dawn chorus is believed to be generated by a Doppler-shifted cyclotron interaction between anisotropic distributions of energetic (> 40 keV) electrons and ambient background VLF noise. These energetic electrons are generally injected into the inner magnetosphere at the onset of the substorm expansion phase. Dawn choruses occur more frequently during magnetic storms.
This phenomenon also occurs during aurorae, when it is termed an auroral chorus.
Dawn breeze brushed my cheek and I knew what I had to leave
Dawn chorus came on glorious all wrapped up in your sheets
Beneath the noise there was silence
And what was left was ours to surprise us
And you could say that, you could say that
You could say that it was my knowing
But I never knew, no, I never knew
No, I never knew where this would be going
All the stories people tell and all the tales I heard from myself
It's best you know or else get told the soft flesh that beats
Beneath your breast
Beneath the noise there's only silence
And you could blame it, you could blame it
You could blame it on my knowing
But I never knew, no, I never knew
No, I never knew where this would be going
I was lonely as the moon who longs for the sun to come by
I'd wait and wait and wait and wait
But never seem to share the same sky
Beneath the noise there was always silence
But what is left comes on to surprise us
And I could say that I could swear that
I could swear that it was my knowing
But I never knew, no, I had no clue, no, I never knew