Figure 23.6: A hummingbird nest with young illustrates an altricial reproductive strategy,
with a few, small eggs, helpless and naked young, and intensive parental care. ( 18 )
Figure 23.7: Canada Goose,Branta Canadensis, adult and young show a precocial reproduc-
tive strategy, where they lay a large number of large eggs, producing well-developed young.
( 13 )