Thank you for the suggestion Sudhir.
Between what you suggested and
Canon R6 mark2 with
Canon RF 100-500mm f/4.5-7.1 L IS USM Lens
or
Canon RF200-800mm f/6.3-9 IS USM
Can you from your wildlife photography experience help decide ?
It would be great if you could also tell the reason behind your decision.
Couple of conflicting parameters where I am struggling are low light performance (morning and evening sighting ), noise handling, sensor size and max fps shooting (flying/taking off birds).When it comes to lens lower f stop or extra 100mm is the dilemma.
Hoping to choose and LEARN,
Gauresh
My references:
https://www.rtings.com/camera/tools/compare/sony-a7-iv-vs-canon-eos-r6-mark-ii/18493/36079
https://cameradecision.com/compare/Canon-EOS-R6-Mark-II-vs-Sony-Alpha-A7-IV