Thirteen collection chests were in the Temple, upon which were inscribed [respectively]: “New Shekalim” and “Old Sheka-lim”; “Nests” and “Young Pigeon Burnt-Offerings”; “Wood” and “Frankincense”; “Gold for the Utensils”; [the remaining] six [were used] for [various] donative-offerings.  “New Shekalim” [was for the shekalim] of each year; and “Old [Shekalim]” [was for] one who did not pay his half shekel last year [and] pays it this year.  “Nests” refers to turtledoves; and “Young Pigeon Burnt-Offerings” refers to young pigeons; and all are burnt-offerings. [These are] the words of R’ Yehudah. But the [other] Sages say: “Nests” [was used by one required to bring two birds], one a sin-offering and one a burnt-offering; but ”Young Pigeon Burnt-Offerings” was for burnt-offerings only.