Outside Were Trees - Birds and Sky
- Artist: Ludwig Bemelmans
- Medium: Watercolor and ink on paper
- Dates: 1939
- Dimensions: sheet: 19 5/16 x 14 1/4 in. (49.1 x 36.2 cm)
- Signature: Signed in ink, lower right: "Bemelmans"
- Inscriptions: Inscribed in ink, bottom center: "outside were trees -- birds and sky -- / and ten [days] went quickly by --"
- Collection: American Art
- Museum Location: Brooklyn Museum, BMA, 2N12, A204
- Accession Number: 41.53
- Image: CUR.41.53_back.jpg. Brooklyn Museum photograph, 0, 4/22/2009
Ink outline sketch on verso, struck through with red pencil. Illustration for Ludwig Bemelmans, "Madeline" (1939)