People in Brookline will know it's Palm Sunday on April 17 when a Jesus reenactor rides a donkey along Brookline Boulevard to the Brookline Boulevard United Presbbyterian Church. The procession, which begins at 9:45 a.m. near the Chelton Ave/Queensboro intersection with the Boulevard, is sponsored by many of the community's churches. Church members will line the streets in biblical costumes -- and will have costumes and palms for others who want to participate. The Rev. Sheldon Sorge, pastor to Pittsburgh Presbytery, will preach. For info call 412-531-0590. . . The Catholic Diocese of Pittsburgh is holding it's annual Palm Sunday youth rally, Hosanna 2011 at the A.J. Paulmbo Center, Uptown. Doors open at 12:15 p.m., and admission costs $20. Speakers include Mark Hart, executive vice president of Life Teen International, and a popular speaker and author. Bishop David Zubik of the Catholic Diocese of Pittsburgh will celebrate Mass at 5 p.m. . . .