Try side and front lighting
When the sun is directly behind you and directly illuminating your subject, shadows are headed away from the lens, too. Frontlighting is usually more appropriate for wildlife than people, as bright daylight causes subjects to squint. When your subject is lit from the front by the sun, be careful where you stand to avoid projecting your own shadow into the frame. This can often be avoided by taking a step to one side or shooting slightly from the side, but for situations where you have little control over where the subject is, like flighty wildlife, you’re better off trying to crouch down to avoid your shadow appearing, or waiting for the animal to move into a better position.
When the sun is lower in the sky at dusk or dawn, you can sidelight your subject by shooting at 90º to the sun. This creates dramatic and eye-catching results, as half of your subject is lit by the harsh sun while the other half is in shadow, giving a mixture of warm and cool tones and greater contrast. Use side lighting to accentuate shadows and shapes, as well as increase the mood in a scene.
On overcast days the clouds soften and disperse the sunlight, acting like a softbox or diffuser. Soft light is more even, and also more flattering for portraits than harsh directional sunlight. The puffin here is very evenly lit by the overcast lighting, with a gentle exposure and soft shadows. Overcast lighting is less suited to dramatic landscape shots, but can lend itself well to black and white work.