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. Author manuscript; available in PMC: 2019 Jun 3.
Published in final edited form as: Am Nat. 2019 Mar 14;193(5):725–737. doi: 10.1086/702848

Figure 2.

Figure 2

Interactive effects of food and corticosterone supplementation were apparent within the first 5 min of treatment application on day 4/5, but disappeared in min 6–10 (A). Food supplementation affected nestling begging during the entirety of our hour-long observation on this day (B), with unfed nestlings begging at a higher rate than nestlings fed either food and water or water only. Plotted are least-squares means ± SE. Filled black symbols depict experimental (Exp) nests for either the corticosterone (A) or food (B) supplement, open symbols depict control (Con) nests in which nestlings were fed the vehicle only, and filled grey symbols depict unmanipulated, natural (Nat) nests that were not supplemented.