Horned lark.
Horned lark, Jan 27, 2019, near Blenheim, Ontario, Canada.
Eremophila alpestris
Female Horned Larks often collect “pavings”—pebbles, clods, corncobs, dung—which they place beside their nests, covering soil excavated from the nest cavity. The “paved” area resembles a sort of walkway, though the birds don’t seem to use it that way. While nobody fully understands the function of these pavings, they may help prevent collected nesting material from blowing away while the nest is under construction.
source - https://www.allaboutbirds.org/guide/Horned_Lark
Female Horned Larks often collect “pavings”—pebbles, clods, corncobs, dung—which they place beside their nests, covering soil excavated from the nest cavity. The “paved” area resembles a sort of walkway, though the birds don’t seem to use it that way. While nobody fully understands the function of these pavings, they may help prevent collected nesting material from blowing away while the nest is under construction.
source - https://www.allaboutbirds.org/guide/Horned_Lark
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