Ah, the age-old question of what lenses to use for bird photography. As a detective and a lover of all things photography, I'm happy to provide some insight into this particular question.

First of all, if you're a Canon shooter, you're in luck. Canon has a fantastic selection of L-series lenses that are perfect for capturing those feathered friends in all their glory. So without further ado, let's dive into some recommended lenses for bird photography.

First up is the Canon EF 100-400mm f/4.5-5.6L IS II USM lens. This is a fantastic zoom lens that offers a great range for bird photography, allowing you to capture both close-up and distant shots with ease. The image stabilization is also top-notch, helping you to capture sharp, clear images even in less than ideal lighting conditions.

Another great option is the Canon EF 600mm f/4L IS III USM lens. This lens is a bit more of an investment, but it's definitely worth it if you're serious about bird photography. The 600mm focal length allows you to get up close and personal with your subjects, while the fast f/4 aperture ensures that you can capture sharp images even in low light situations.

For those who prefer a prime lens, the Canon EF 400mm f/2.8L IS III USM lens is another great option. This lens is incredibly fast, with a wide f/2.8 aperture that allows you to capture stunning images with beautiful bokeh. The image stabilization is also top-notch, making it easier to capture sharp, clear images even when shooting handheld.

If you're on a budget, the Canon EF 70-300mm f/4-5.6L IS USM lens is a great option. This lens is much more affordable than some of the other options on this list, but still offers excellent image quality and a good range for bird photography. The image stabilization is also a big plus, helping you to capture sharp, clear images even when shooting handheld.

And last but not least, the Canon EF 500mm f/4L IS II USM lens is another excellent option for bird photography. This lens is incredibly fast, with a wide f/4 aperture that allows you to capture stunning images with beautiful bokeh. The image stabilization is also top-notch, making it easier to capture sharp, clear images even when shooting handheld.

So there you have it, my recommendations for Canon L-series lenses for bird photography. Of course, these are just a few options and there are many other lenses out there that are great for capturing those feathered friends. Ultimately, the best lens for you will depend on your personal preferences and shooting style, so don't be afraid to try out a few different options and see what works best for you. Happy shooting!