When comparing lovebirds and cockatiels, lovebirds are generally considered easier to care for. Cockatiels are known to be more delicate and their resistance to illness isn't as strong as that of lovebirds.

Lovebirds are quite low-maintenance. To care for a lovebird, you’ll need a birdcage, a suitable amount of birdseed, and a cuttlebone (for calcium supplementation in adult birds). A coconut shell for sleeping is also beneficial. Daily tasks include replenishing food and water. Every two weeks, check if the food bowl is full of husks; empty and refill it when necessary. Clean the droppings tray every other day. Lovebirds typically bathe themselves in their water supply (avoid placing them directly under air conditioning after bathing, as this can lead to illness). During hot summer days above 30°C (86°F), move them to a shaded area. In winter, keeping them in temperatures above 5°C (41°F) should be sufficient to prevent heatstroke or freezing. As for food, you can feed them various leafy greens like choy sum (Chinese flowering cabbage) and cucumber, as well as apples (remove the toxic seeds before feeding). To be safe, avoid feeding them anything you wouldn't eat yourself. Supplement with choy sum and apples from time to time. With these simple steps, lovebirds can be comfortably left alone for up to ten hours a day without concern. Lovebird care is very straightforward and their resilient nature makes them ideal for new bird owners.
Cockatiels, in comparison to parakeets and lovebirds, are not as robust and are more susceptible to diseases. Cockatiels are comparatively more delicate and require a higher level of care and a more specific living environment. The care for Cockatiels requires more attention than lovebirds. Their health is not as robust as lovebirds, making lovebird care generally easier and more convenient. Understanding these differences will help you decide which bird is more suitable for your lifestyle and experience level. The robustness of a lovebird makes it an ideal pet bird for beginners while the cockatiel would be suitable for someone with prior bird experience and time to invest in their care.