If his means do not suffice — turtledoves or young pigeons.
In the sugya: Kerisos places the oleh ve-yored on a sliding scale of means. When the person cannot afford a sheep or goat, the Torah substitutes birds; when even birds are beyond reach, flour is accepted. The assessment is of present capacity, not of potential loans or future earnings.
Type of Learning
Miyut / sliding scale — poverty adjusts the animal tier of the oleh ve-yored.
What Is Learned
The oleh ve-yored has a wealth-graded structure. One who cannot afford an animal brings turtledoves or young pigeons; one who cannot afford birds brings a flour-chatas. The Torah’s compassion is built into the offering itself: the obligation never exceeds the person’s present means. This is the classic sliding-scale model of korbanot.