Your dexterity score is increased by 2.

Ducklans reach adulthood at the age of 10 and live to be about 60 years old. 70 at the most.

Ducklans tend to be chaotic good.

Your size is Medium. Reaching from a hight of 4 to 5 and a half feet.

Your base walking speed is 25 feet. Your swimming speed is 30 feet.

You have all the necessary features to be under water to a depth of  50 feet.You can also hold your breath underwater for 10 minutes. This is reduced to 20 feet and 3 minutes if you are carrying more than twice you strengt modifier.

You can comunicate simple messages with beasts that are either small or tiny size. You also gain a +3 on animal handling rolls.

You have advantage on perception rolls that rely on sight and gain a +2 bonus to your perception.

If an undead, fiend, monstrosity, or a beast harboring hostile intentions, is within 100 feet of your vicinity, you become acutely aware of its presence. However, this awareness does not reveal its exact location, the creature's specific identity, or its target. It's a simple acknowledgment of its presence. Should you be asleep when such a creature draws near, the monster must make a stealth check against your passive perception. If it succeeds, you remain undisturbed in slumber, oblivious to its presence. If the stealth check fails, you are roused from sleep and made aware of the lurking creature's existence.

Upon reaching level 5 you can use a bonus action to turn into a duck. You can transform once per long rest.

You can stay in a duck shape for a number of hours equal to your level devided by 5 (rounded down). You then revert to your normal form. You can revert to your normal form earlier by using a bonus action on your turn. You automatically revert if you fall unconscious, drop to 0 hit points, or die.

While you are transformed, the following rules apply:

• Your game statistics are replaced by the statistics of the duck, but you retain your alignment, personality, and Intelligence, Wisdom, and Charisma scores. You also retain all of your skill and saving throw proficiencies, in addition to gaining those of the duck. If the duck has the same proficiency as you and the bonus in its stat block is somehow higher than yours, use the duck's bonus instead of yours.
• When you transform, you assume the duck's hit points and Hit Dice. When you revert to your normal form, you return to the number of hit points you had before you transformed. However, if you revert as a result of dropping to 0 hit points, any excess damage carries over to your normal form. For example, if you take 10 damage in duck form and have only 1 hit point left, you revert and take 9 damage. As long as the excess damage doesn’t reduce your normal form to 0 hit points, you aren’t knocked unconscious.
• You can’t cast spells, and your ability to speak or take any action that requires hands is limited to the capabilities of your duck form. Transforming doesn’t break your concentration on a spell you’ve already cast, however, or prevent you from taking actions that are part of a spell, such as call lightning, that you’ve already cast.
• You retain the benefit of any features from your class, race, or other source and can use them (if an ability is similar like if you both have proficiensy on perception then you don't gai additional benefits) if the new form is physically capable of doing so. However, you can’t use any of your special senses, such as darkvision, unless your duck form also has that sense.
• You choose whether your equipment falls to the ground in your space, merges into your duck form, or is worn by it. Worn equipment functions as normal, but the DM decides whether it is practical for the duck form to wear a piece of equipment, based on the duck’s shape and size. Your equipment doesn’t change size or shape to match the duck form, and any equipment that the duck form can’t wear must either fall to the ground or merge with it. Equipment that merges with the duck form has no effect until you leave the duck form.

When you take the Attack action on your turn, you have the option to use your bonus action to perform an additional attack with your beak. It's important to note that this bonus attack doesn't stack with other multi-attack abilities. For instance, if you were to utilize the "Extra Attack" feature from the fighter class, you'd need to forego your beak attack. Of course, you can also make a standalone beak attack without the requirement of a prior attack.

The beak attack deals 1d4 damage at level 1, increases to 1d6 at level 5, further to 1d8 at level 10, and progresses to 1d10 at level 15. By the time you reach level 20, it inflicts 1d12 damage. You may also apply your strength modifier and proficiency bonus to the beak attack.

You can speak, read, and write Common and Aquan.