The table below presents an aligned extract of verses or verselets in Lv01-14b Both verses/verselets discuss the types of birds that may be offered as offerings. The alignment justifies the Rashi comment that: Here, in this verse, as well as throughout the rest of the Bible, we always find children associated with Pigeons. Similarly we always find turtledoves associated with lack of reference to children. Hence we conclude that a) When bringing turtledoves only adults can be brought as bird offerings while b) When bringing pigeons only teenage/younger pigeons can be brought as a bird offerings.

Verse	Text of Verse	Rashi comment
Lv01-14b	And if the elevation sacrifice for his offering to the Lord is of birds, then he shall bring his offering of turtledoves, or of child pigeons.	Here, in this verse, as well as throughout the rest of the Bible, we always find children associated with Pigeons. Similarly we always find turtledoves associated with lack of reference to children. Hence we conclude that a) When bringing turtledoves only adults can be brought as bird offerings while b) When bringing pigeons only teenage/younger pigeons can be brought as a bird offerings.
Lv01-14b	And if the elevation sacrifice for his offering to the Lord is of birds, then he shall bring his offering of turtledoves, or of child pigeons.

Advanced Rashi: We have defended this Rashi using the alignment method. However we could have also defended it using the format method since the repeated keyword of in Lv01-14 which states ...he shall bring his offering of turtledoves or of pigeons, creates a bullet like structure emphasizing the distinctness of each enumerated item: a) turtledoves and b) child pigeons.

Similarly we could have defended this Rashi using the database method since a database review of all verses referring to turtledoves and pigeons always associates the adjective child with pigeons, not with turtledoves.