I've recently started to spend more time during this pandemic on my photography, mainly photo shooting birds in my garden.
I have a D40 which I bought 12 years ago and love it! it's a great little camera and solid as rock. I currently have a Sigma 10-20mm which I love so much, and an average Tamron 18-200 for general use.
I also have just bought a D300 for a great price off Ebay a camera that is beyond me at the moment! but I will enjoy getting used to all the buttons, if ever! I also bought a Nikkor f 4.5 prime AI 300mm and believe the D300 will work the aperture and beep when I manually focus, fingers crossed! really for birds. So, no doubt will need some help.
Cheers