. First lessons in zoology. Zoology. A BIRD'S NEST, AND OTHER ANIMAL HOMES 35 When does building begin ? How long does it last ? How soon after finishing the nest are the eggs laid ? Are all the eggs laid at one sitting ? Do both birds take part in incubation, , sitting, or but one, and if but one, is it the male or the female 1 What does the other do.' How long before the eggs hatch .' Do they all hatch at the same time } After hatching the care of the fledglings should be well watched. Do both parents bring food 1 How many times is food brought in one hour, or if so much time can be give
. First lessons in zoology. Zoology. A BIRD'S NEST, AND OTHER ANIMAL HOMES 35 When does building begin ? How long does it last ? How soon after finishing the nest are the eggs laid ? Are all the eggs laid at one sitting ? Do both birds take part in incubation, , sitting, or but one, and if but one, is it the male or the female 1 What does the other do.' How long before the eggs hatch .' Do they all hatch at the same time } After hatching the care of the fledglings should be well watched. Do both parents bring food 1 How many times is food brought in one hour, or if so much time can be given to continuous watch- ing, in two or three } What is the food 1 Is the nest cleaned .' If so, how often ^ When are the first flying lessons given .' How long do the young birds continue ^'^^//t^"'' °^ h>,mming-bird -' o made oi sycamore down (one-half to come back to the nest at natural size). night after they first leave it} Other incidents in the course of nest-building incu- bation, and care of the young birds will certainly be noted if sufficient observation to answer the above ques- tions is given. Attacks by cats and bluejays (fig. 19), disputes between the parent birds, accidents from high winds or other causes are all likely to enter into the course of nesting. And the behavior of the parent birds under such more or less unnatural circumstances will be interesting to observe and record. While some pupils are watching a robin's nest others should observe the nesting of other kinds of birds—the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kellogg, Vernon L. (Vernon Lyman), 1867-1937. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1903
