Per 
Quack!
Item: SCP-345-J "The Lost Flock"
Object Class: Safe, but in a quacky way!
Special Containment Procedures: Instances of SCP-345-J are to be contained within a large, watertight and reinforced containment chamber measuring 20 meters by 20 meters. The chamber should be equipped with automated temperature control systems, humidity regulation, and water filtration. The walls, floor, and ceiling of the chamber must be made of non-porous materials to prevent water leakage and potential escape. SCP-345-J instance requested a bath themed containment chamber. Request approved!.
Description: SCP-345-J refers to a collection of 28,000 rubber ducks that possess sentience and exhibit behavior consistent with domesticated pets. The rubber ducks were created by an anomalous toymaker known as Dr. Wondertainment. Designed to be interactive bathtub toys, SCP-345-J instances were intended to live in bathtubs and provide entertainment.
In 1992, a cargo ship transporting SCP-345-J instances encountered a severe storm and sank in the Pacific Ocean. The crates containing SCP-345-J were lost at sea until 1997 when the SCP Foundation recovered approximately 5,000 instances floating in the vicinity of the coast of California. To date, the SCP Foundation has managed to recover approximately 5,000 of these wayward rubber ducks. The remaining 23,000 are still unaccounted for and are causing quite a "quack" in the system.
SCP-345-J instances exhibit various colors, sizes, and expressions, but all share similar anatomical features. They possess small beaks, button-like eyes, and the ability to float on water. SCP-345-J instances have proven capable of basic locomotion, albeit limited to the movement within a confined space.
Despite their small size, SCP-345-J instances possess average intelligence, enabling them to communicate through quacking sounds and limited movements. They have shown a capacity for understanding and responding to human speech but are unable to vocalize long coherent human language without quacking every sentence.
Addendum SCP-345-1-J: Interview Log
Interviewed: SCP-345-007-J
Interviewer: Dr. Pearl
Foreword: Dr. Pearl initiated a conversational interview with SCP-345-J to gather information about their origins, behaviors, and capabilities.
<Begin Log>Dr. Pearl: Good morning, SCP-345-007-J. Can you understand me?
SCP-345-J: Quack! Yes, I understand you, Dr. Pearl.
Dr. Pearl: Excellent. Let's begin. How do you refer to yourselves?
SCP-345-J: We refer to ourselves as "Quackers" That's what our creator called us.
Dr. Pearl: I see. Could you tell me more about creator? How did you come to be?
SCP-345-J: Our creator was Dr. Wondertainment Quack!. He made us to be companions during bath time. We
were meant to bring joy and make bathtubs more fun.Dr. Pearl: And how did you end up lost at sea?
SCP-345-J: It was a terrible storm. The ship carrying us was tossed around, and our crates fell overboard. We were scattered in the ocean. Quack! Many of us got separated, and were drifting ever since. We did not understand what the ocean was but that it was a giant bath tub!
Dr. Pearl: Have you encountered any other creatures or entities during your time at sea?
SCP-345-J: We've encountered some marine life, like fish and seagulls. Quack! But we've mostly stayed together, trying to find our way back home.
Dr. Pearl: Interesting, Thank you. Lastly, do you have any desires or requests?
SCP-345-J: Our main desire is to be reunited with the other Quackers, the ones still lost out there. We miss them. If you find them, please bring them back to us.
Dr. Pearl: We will do our best to locate the remaining SCP-345-J instances. Thank you for your cooperation, SCP-345-J.
SCP-345-J: Quack! You're welcome, Dr.Pearl. Thank you for talking to me.
<End Log>
Closing Statement: SCP-345-J displayed a cooperative and friendly demeanor throughout the interview. Efforts to locate the remaining 23,000 SCP-345-J instances are ongoing, with the intention of reuniting them with the recovered instances. The Foundation has employed specialized teams and satellite imagery to track their movements. However, due to their ability to blend in with normal rubber ducks, progress has been slow.