Reviewing clickable cards

Example 1

This is a standard card, with multiple links inside. What are the possible issue with this card?

Laughing kookaburra

Laughing kookaburra

The laughing kookaburra is well known both as a symbol of Australia’s birdlife.

Kookaburra - Wikipedia

Example 2

The <a> element has been wrapped around the card. What are the possible issues?

Kangaroo

Kangaroos possess powerful hind legs, a long, strong tail, and small front legs.

Example 3

The <a> element has been positioned over the card using CSS. What are the possible issues?

Emu

The emu is the second-tallest living bird after its ratite relative the ostrich.

Example 4

JavaScript has been used to create a click event on the card, taking the link from the <h2>. What are the possible issues?

Common wombat

This large, stocky mammal is a marsupial, or pouched animal, found in Australia and on scattered islands nearby.

Wombat - Wikipedia