Really hard

The Conundrum: Identifying the Authentic Bird
The difficulty of this particular puzzle resides in the remarkable similarity among all seven birds. Engineered to deceive the eye, it prompts hasty judgments that frequently result in errors. Here are the typical missteps and strategies for circumventing them:

Hastily Jumping to Conclusions: Many individuals take a cursory glance and select the bird that seems “real” based on intuition. This approach overlooks crucial details such as texture or body posture.
Relying on the Apparent: The most vividly colored or conspicuously positioned bird often appears to be the answer, but puzzles seldom present such straightforward solutions.
Neglecting the Surroundings: Failing to notice how the birds interact with their environment can cause one to miss vital cues, like the presence of shadows or how they rest on a given surface.
Disregarding Texture: Real animals possess unique textural qualities – feathers, lustrous eyes, and natural contours. In contrast, toys lack these organic details.

How to Solve the Puzzle: A Methodical Approach
Mastering puzzles of this nature demands a methodical strategy. Here’s how to single out the real bird:

Eliminate the Obvious Counterfeits: Initiate the process by singling out the birds that evidently seem artificial. For instance:
Bird #1 exhibits unnaturally vivid colors.
Bird #7 appears excessively glossy, suggesting it is a plastic replica.
These characteristics promptly reduce the pool of potential candidates.

Concentrate on Fine Particulars: Examine each bird closely, either by zooming in or scrutinizing attentively, with a focus on:
Feathers versus a Smooth Exterior: Real birds possess elaborate feather patterns, in contrast to the smooth surfaces of toys.
Eyes: The eyes of a real bird possess depth and a sheen, while toy eyes typically seem flat and painted.
Beak and Feet: Look for natural textures and appropriate proportions.

Observe Shadows and Environmental Interaction: Real birds cast naturalistic shadows and may indent slightly into surfaces due to their weight. Toy birds, on the other hand, sit rigidly and have uniform shadows.