Tasbeeh of Birds

  The time of Fajr (early morning before sunrise) has always been my favorite and I just feel good Praying at Fajr and sitting down reciting Qurán I do enjoy regularly and I frequently hear the chirping sounds of birds. Well what is so special of these sounds
 Quran in Sura Bani Israeel 17th sura  says in Aya 44 (My own words) Everything in seven heavens and earth makes Tasbeeh (praising/extolling) the Lord, the Creator but we do not understand their (chirping) tasbeeh
 And in aya 79 of Sura 21 (Anbiyaa) Allah says that Mountains and birds make tasbeeh along with Dawood. 
We know that Dawood AS (King David) had the voice to sing praises of Allah or Tasbeeh of Allah and birds and other things joined with him. 
So I hear this Tasbeeh of the birds which I try to understand I have been paying attention as I sit in my front room I feel the sounds coming from the street outside but where exactly are those birds I do not  know I hear two or probably three or more, different types of sounds One bird loudest of them all goes like this
 "Cheeu Cheeu Cheeu Cherdu" and then chee chee and there is then a distinct pause for maybe ten seconds and the sounds repeated with the same rhythm which is fascinating and is kept very regular like the notes of a song. Both the pause time and singing time are maintained with musical accuracy.
 Then there is the other one who would make very rapid " Che Che Che" anywhere from 5 to 17 times in three seconds or so. Very different indeed and another one with slower "Cheeeaw Cheeeaw" type song but as above each one has that fixed rhythm and timing. There may be more types I will concentrate to try to distinguish with my poor acoustic abilities

 Another one, " Cheerek, cheerek " type but rhythm is maintained. 
 Then a softer sound bird comes in and makes different chee chee rhythm probably a farther away in distance to appear to be softer in sound. These will continue some times mixed together as they are doing independently which I listen to closely Then after about 10-15 minutes stop all sounds. Another couple of minutes and they start all over again with the same rhythm and same sounds with the same accuracy I marvel at their skills and have no doubt they are singing praises of God in their own language just like we as Muslims do at "fajr". Timing is the same and that makes me think of Dawood AS how his voice must have been. 
 Ever wonder about these things?