Fecha de publicación: 17/02/2021 Fuente: WIPO "hive" A beehive entrance attachment 11 having an outer surface, and an inner surface defining a chamber with a length, width and depth. The length and width define an area large enough for a queen bee. The depth is between 4 and 9. 5 millimetres. The chamber is hollow with a first side, defined by a length and width, at least partially open and a second side, adjacent to the first side and defined by the depth and the width of the chamber, is also at least partially open. A protrusion may extend from the side opposite the first side. The inner surface may be a base plate 14 acting as a baffle, with side walls 12, acting as a spacer and defining gap 17. There may be attachments 13 to retrofit the entrance to the inside or outside of a hole made in a side of a hive. The attachment may be a single piece of material and may be thermoplastics. A beehive with the attachment is also disclosed. A plug member [16, figure 8] may be used with the attachment.