Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2011 Feb 25;6(2):e17466. doi: 10.1371/journal.pone.0017466

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Feenders, Bateson.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

PMC Copyright notice

Effect of origin and housing on (A) general activity T(move), (B) use of front section of cage T(front), and (C) use of peripheral cage locations T(peripheral). Shown is the behaviour over the course of 6 consecutive time periods of 255 sec duration each. The grey shaded box indicates the period when the human was present. Pre-1 and pre-2: periods before the human entered the room; post-1, post-2 and post-3: periods after the human had left. Black squares: hand-reared birds; grey circles: wild-caught birds; filled symbols, solid lines: enriched housing (EH); open symbols, dashed lines: non-enriched housing (SH). Shown data values are not transformed but normalized to the length of the time period (thus, a value of 1(100%) is equivalent to 255 sec, and a value of 0.5 (50%) to 127.5 sec). Data show group means ±1 SEM.