A male tree swallow (Tachycineta bicolor) defends his nestbox and nestlings from a takeover from another tree swallow. Beaumont, Alberta, Canada.
A male tree swallow (Tachycineta bicolor) defends his nestbox and nestlings from a takeover from another tree swallow. Beaumont, Alberta, Canada.https://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-male-tree-swallow-tachycineta-bicolor-defends-his-nestbox-and-nestlings-from-a-takeover-from-another-tree-swallow-beaumont-alberta-canada-image237800425.html
A tree swallow (Tachycineta bicolor) defends the front entrance of a birdhouse (nestbox). Beaumont, Alberta, Canada.
A tree swallow (Tachycineta bicolor) defends the front entrance of a birdhouse (nestbox). Beaumont, Alberta, Canada.https://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-tree-swallow-tachycineta-bicolor-defends-the-front-entrance-of-a-birdhouse-nestbox-beaumont-alberta-canada-image237800403.html
A tree swallow (Tachycineta bicolor) with its head poking out of its nestbox in Beaumont, Alberta, Canada.
A tree swallow (Tachycineta bicolor) with its head poking out of its nestbox in Beaumont, Alberta, Canada.https://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-tree-swallow-tachycineta-bicolor-with-its-head-poking-out-of-its-nestbox-in-beaumont-alberta-canada-image237800402.html
A female tree swallow (Tachycineta bicolor) with her head poking out of her nestbox in Beaumont, Alberta, Canada
A female tree swallow (Tachycineta bicolor) with her head poking out of her nestbox in Beaumont, Alberta, Canadahttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-female-tree-swallow-tachycineta-bicolor-with-her-head-poking-out-of-her-nestbox-in-beaumont-alberta-canada-image246509050.html
A male tree swallow (Tachycineta bicolor) perched on a fence. Beaumont, Alberta, Canada.
A male tree swallow (Tachycineta bicolor) perched on a fence. Beaumont, Alberta, Canada.https://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-male-tree-swallow-tachycineta-bicolor-perched-on-a-fence-beaumont-alberta-canada-image246289495.html
A female tree swallow (Tachycineta bicolor) perched on a fence. Beaumont, Alberta, Canada.
A female tree swallow (Tachycineta bicolor) perched on a fence. Beaumont, Alberta, Canada.https://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-female-tree-swallow-tachycineta-bicolor-perched-on-a-fence-beaumont-alberta-canada-image246289496.html
A juvenile tree swallow (Tachycineta bicolor) perched on a fence, literally minutes after its first flight. Beaumont, Alberta, Canada.
A juvenile tree swallow (Tachycineta bicolor) perched on a fence, literally minutes after its first flight. Beaumont, Alberta, Canada.https://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-juvenile-tree-swallow-tachycineta-bicolor-perched-on-a-fence-literally-minutes-after-its-first-flight-beaumont-alberta-canada-image366312781.html
A juvenile tree swallow (Tachycineta bicolor) perched on a fence, literally minutes after its first flight. Beaumont, Alberta, Canada.
A juvenile tree swallow (Tachycineta bicolor) perched on a fence, literally minutes after its first flight. Beaumont, Alberta, Canada.https://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-juvenile-tree-swallow-tachycineta-bicolor-perched-on-a-fence-literally-minutes-after-its-first-flight-beaumont-alberta-canada-image366312775.html
A juvenile tree swallow (Tachycineta bicolor) perched on a fence, literally minutes after its first flight. Beaumont, Alberta, Canada.
A juvenile tree swallow (Tachycineta bicolor) perched on a fence, literally minutes after its first flight. Beaumont, Alberta, Canada.https://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/a-juvenile-tree-swallow-tachycineta-bicolor-perched-on-a-fence-literally-minutes-after-its-first-flight-beaumont-alberta-canada-image366312770.html
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