Reivindicaciones

1. CLAIMS 1. Anti-collision screen for birds on a railway track, characterized in that it comprises several posts (1 ) aligned in two alignments on the two sides of a railway platform where is located the railway track, such that each post (1 ) comprises: a pointed conical end piece (3) in its upper part; and three metallic equidistant helical cords (4) extending in the post (1 ) from the pointed conical end piece (3), along a post length section between 1 and 1.40 meters. 2. Anti-collision screen for birds on a railway track according to claim 1 , characterized in that the posts (1 ) are located in a staggered manner on the two sides of the railway track. 3. Anti-collision screen for birds on a railway track according to any of claims 1 to 2, characterized in that the posts (1 ) are separated from one another by a distance between 1 and 3.50 meters. 4. Anti-collision screen for birds on a railway track according to any of claims 1 to 3, characterized in that the pointed conical end piece (3) has a height between 40 and 60 centimeters, preferably 50 centimeters. 5. Anti-collision screen for birds on a railway track according to any of claims 1 to 4, characterized in that the metallic helical cords (4) made of steel have a thickness between 10 and 14 mm, preferably 12 mm, and are welded to the post (1 ). 6. Anti-collision screen for birds on a railway track according to any of claims 1 to 5, characterized in that the posts (1 ) are metallic circular section tubes with an outer diameter between 100 and 140 millimeters, preferably 120 millimeters, a thickness between 2 and 3 millimeters, preferably 2.5 millimeters, and a height between 3.50 and 4.70 meters, preferably 4.10 meters. 7. Anti-collision screen for birds on a railway track according to any of claims 1 to 6, characterized in that it comprises several piles (2) for anchoring several posts (1 ), where the piles (2) project a maximum of 0.90 meters from the railway platform. 8. Anti-collision screen for birds on a railway track according to any of claims 1 to 6, characterized in that it comprises a rectangular section tie beam (12), anchored to the ground by means of several piles (2). 9. Anti-collision screen for birds on a railway track according to any of claims 7 to 8, characterized in that the posts (1 ) comprise plates (5) at their lower end, such that the post (1 ) is attached to an element to be chosen from a pile (2) and the tie beam (12) by means of rods (6). 10. Anti-collision screen for birds on a railway track according to any of claims 7 to 9, characterized in that the piles (2) are located on the outside of the communication conduit of the railway track. 1 1. Anti-collision screen for birds on a railway track according to any of claims 1 to 10, characterized in that it comprises an electrical protection system of the posts, comprising: a longitudinal underground cable (9) located in a trench (10) on each side of the railway track, connected to each post (1 ) by means of a single-core cable (7), - a connection terminal (8) for attaching the single-core cable (7) to each post (1 ), at least one earthing rod (11 ).