Range
Breeds from central Alaska and Yukon, southwestern Mackenzie, northern British Columbia, southwestern Alberta, and Saskatchewan south through the western United States to Baja California and southern Mexico. Winters from central coastal California to southern Mexico and northern Central America.

Status in British Columbia
On the coast, common to very abundant spring migrant on southeastern Vancouver Island and the entire lower Fraser River valley in the Georgia Depression Ecoprovince. Fairly common to very common summer visitant and autumn migrant there; occasionally abundant in autumn and very rare in early winter. Uncommon to locally common migrant and summer visitant to Western Vancouver Island and the southern and northern portions of the Coast and Mountains Ecoprovince; very rare transient on the Queen Charlotte Islands.
In the interior, fairly common to very common spring migrant and summer visitant to the south-central portions of the province, including the Southern Interior and Southern Interior Mountains ecoprovinces; common to abundant autumn migrant; casual in winter there. Northward, throughout the Read More

Range
Breeds from central Alaska and Yukon, southwestern Mackenzie, northern British Columbia, southwestern Alberta, and Saskatchewan south through the western United States to Baja California and southern Mexico. Winters from central coastal California to southern Mexico and northern Central America.

Status in British Columbia
On the coast, common to very abundant spring migrant on southeastern Vancouver Island and the entire lower Fraser River valley in the Georgia Depression Ecoprovince. Fairly common to very common summer visitant and autumn migrant there; occasionally abundant in autumn and very rare in early winter. Uncommon to locally common migrant and summer visitant to Western Vancouver Island and the southern and northern portions of the Coast and Mountains Ecoprovince; very rare transient on the Queen Charlotte Islands.
In the interior, fairly common to very common spring migrant and summer visitant to the south-central portions of the province, including the Southern Interior and Southern Interior Mountains ecoprovinces; common to abundant autumn migrant; casual in winter there. Northward, throughout the rest of the province, uncommon to locally common migrant and summer visitant except in the extreme northeastern corner, where it is a casual spring transient in the Taiga Plains Ecoprovince.

Breeding
The Violet-green Swallow breeds throughout most of its range in the province. This species reaches its highest numbers on southeastern Vancouver Island and in the lower Fraser River valley of the Georgia Depression. It seems to thrive in close association with humans. Although the Violet-green Swallow nests solitarily, it also nests in substantial colonies, particularly on cliffs. The Violet-green Swallow has adapted well to nesting in human-made habitats such as nest boxes, the crannies of houses, garages, sheds, barns, and other buildings, and in posts and poles, stone and brick walls, and bridges. Natural nest sites include rock cliffs, snags, and cavities in living deciduous and coniferous trees. The adaptability of the Violet-green Swallow is indicated by the diversity of nest sites reported; any darkened cavity with an adequate entrance hole or crevice seems suitable. Reported nests were loosely constructed, the amount of material governed by the size of the cavity occupied. The nest was usually a collection of grasses with a small cup formed in the centre or in 1 corner of the cavity; the cup was formed with finer grasses and lined generously with feathers. White feathers seemed to be preferred. Clutch size ranged from 1 to 8 eggs, with a majority having 4 or 5 eggs.


Copyright © 2003, Royal British Columbia Museum Corporation (RBCM). All rights reserved.

Violet-green Swallow

Violet-green Swallow (Tachycineta thalassina)

The Royal British Columbia Museum
Canadian Heritage Information Network

Copyright © 2003, Royal British Columbia Museum Corporation (RBCM). All rights reserved.


Violet-green Swallow Bird Song

The Royal British Columbia Museum
Canadian Heritage Information Network

Copyright © 2003, Royal British Columbia Museum Corporation (RBCM). All rights reserved.


Sonogram

Violet-green Swallow Sonogram

The Royal British Columbia Museum
Canadian Heritage Information Network

Copyright © 2003, Royal British Columbia Museum Corporation (RBCM). All rights reserved.


Grace Bell's Violet-green Swallow Research Notes:
Tape Number: M5.175 (01a)
Recording Remarks: 15 ips
Length: not available
Location Description: not available
Location Name: 742 St. Patrick St., Victoria, BC
General Remarks: Selecting nesting site. I think this was recorded on Magnecorder but it may have been Nagra. I can't find notes, except this - home and nest site selection.
Date: 1961/06/--
Recorder: Grace Bell
Grace Bell's Violet-green Swallow Research Notes:
Tape Number: M5.175 (01a)
Recording Remarks: 15 ips
Length: not available
Location Description: not available
Location Name: 742 St. Patrick St., Victoria, BC
General Remarks: Selecting nesting site. I think this was recorded on Magnecorder but it may have been Nagra. I can't find notes, except this - home and nest site selection.
Date: 1961/06/--
Recorder: Grace Bell

Copyright © 2003, Royal British Columbia Museum Corporation (RBCM). All rights reserved.

Range
Breeds from western and central Alaska east across north-central Canada to central Newfoundland, and south to northern Baja California in the west; in the east from central Saskatchewan, Manitoba, and the northern Great Lakes states south through New York in mountainous areas to eastern Tennessee and western North Carolina. Winters in South America from Colombia and Venezuela to Peru, and casually in southern California.

Status
Breeds from western and central Alaska east across north-central Canada to central Newfoundland, and south to northern Baja California in the west; in the east from central Saskatchewan, Manitoba, and the northern Great Lakes states south through New York in mountainous areas to eastern Tennessee and western North Carolina. Winters in South America from Colombia and Venezuela to Peru, and casually in southern California.

Breeding
The Olive-sided Flycatcher has a widespread breeding distribution across the southern portions of the province, including Vancouver Island, although it likely breeds throughout most of forested British Columbia except the Queen Charlo Read More
Range
Breeds from western and central Alaska east across north-central Canada to central Newfoundland, and south to northern Baja California in the west; in the east from central Saskatchewan, Manitoba, and the northern Great Lakes states south through New York in mountainous areas to eastern Tennessee and western North Carolina. Winters in South America from Colombia and Venezuela to Peru, and casually in southern California.

Status
Breeds from western and central Alaska east across north-central Canada to central Newfoundland, and south to northern Baja California in the west; in the east from central Saskatchewan, Manitoba, and the northern Great Lakes states south through New York in mountainous areas to eastern Tennessee and western North Carolina. Winters in South America from Colombia and Venezuela to Peru, and casually in southern California.

Breeding
The Olive-sided Flycatcher has a widespread breeding distribution across the southern portions of the province, including Vancouver Island, although it likely breeds throughout most of forested British Columbia except the Queen Charlotte Islands. Its highest numbers occur mainly on southeastern Vancouver Island, in the Georgia Depression Ecoprovince, and in the southwestern portion of the Sub-Boreal Interior Ecoprovince. It appears to be sparsely but evenly distributed elsewhere in suitable habitats.
An analysis of Breeding Bird Surveys for the period 1968 through 1993 shows that the mean number of birds on coastal and interior routes decreased at an average annual rate of 5%. Possible reasons for the decline include destruction of tropical wintering habitats, loss of suitable breeding and foraging habitats, logging activities that alter age classes of forests, and use of forest pesticides and herbicides. Breeding habitat includes the edges of semi-open mature coniferous forests and mixed woodlands, usually near water. Half of the Olive-sided Flycatcher nests were found in semi-open coniferous forests. Most of the rest were in mixed forests. Most nests were situated in coniferous trees. All of the described nests were attached to the upper surface of a horizontal branch, generally well out on the branch but occasionally near the trunk. Nests were bulky structures of interwoven twigs, sticks, and rootlets. The nest cup was lined with beard-lichens, grass, and other plant fibres. Sizes of clutches ranged from 1 to 4 eggs.

Copyright © 2003, Royal British Columbia Museum Corporation (RBCM). All rights reserved.

Olive-sided Flycatcher Bird Song

The Royal British Columbia Museum
Canadian Heritage Information Network

Copyright © 2003, Royal British Columbia Museum Corporation (RBCM). All rights reserved.


Sonogram

Sonogram Olive-sided Flycatcher Song

The Royal British Columbia Museum
Canadian Heritage Information Network

Copyright © 2003, Royal British Columbia Museum Corporation (RBCM). All rights reserved.


Tape Number: M6.095(25l)
Recording Remarks: 15 ips
Length: 01:02
Location Description: not available
Location Name: not available
General Remarks: Presentation to Pacific Northwest Bird and Mammal Society
Date: 1962/10/27
Recorder: Grace Bell
Tape Number: M6.095(25l)
Recording Remarks: 15 ips
Length: 01:02
Location Description: not available
Location Name: not available
General Remarks: Presentation to Pacific Northwest Bird and Mammal Society
Date: 1962/10/27
Recorder: Grace Bell

Copyright © 2003, Royal British Columbia Museum Corporation (RBCM). All rights reserved.

Learning Objectives

The learner will:

  • Become familiar with the appearance, song, ecology, and taxonomic groupings of Canadian songbird species, with particular reference to British Columbia
  • Understand the importance of field notes in ecology, and be aware of typical information found in such notes

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