. The Auk. Birds. 68 Bergtold, a Study of the House Finch. \_3^n. seem to show that the method of obtaining them had no untoward effect on the growth of the birds. The meteorologic conditions prevaiUng during the nest hfe of broods "4-B-07" and "5-C-07" Table No. 4. Average daily gain in weight of eight nestlings, gain given in percent. DAY I 2 3 4 ^^ 6 7 6 9 /o // 12 /3 14 15 j6. seemed to have httle or no influence on the development of the individuals of both broods, though the temperature went, on several nights, below 50 F. Conclusions as to Weight. 1. Average weight o
. The Auk. Birds. 68 Bergtold, a Study of the House Finch. \_3^n. seem to show that the method of obtaining them had no untoward effect on the growth of the birds. The meteorologic conditions prevaiUng during the nest hfe of broods "4-B-07" and "5-C-07" Table No. 4. Average daily gain in weight of eight nestlings, gain given in percent. DAY I 2 3 4 ^^ 6 7 6 9 /o // 12 /3 14 15 j6. seemed to have httle or no influence on the development of the individuals of both broods, though the temperature went, on several nights, below 50 F. Conclusions as to Weight. 1. Average weight of House Finch egg — 36 grains. 2. Average weight of newly hatched House Finch — 42 grains. 3. Average weight of young House Finch on leaving nest, 262 grains. 4. Weight of an adult House Finch — 289 grains. 5. Average weight of 17 House Finches (juv.) was 92 % of adult bird's weight. 6. A young House Finch when leaving the nest may weigh within 99 % of the adult 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 American Ornithologists' Union. Washington, D. C. : American Ornithologists' Union, etc.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1884
